tag:blogger.com,1999:blog-6291326413075346902024-03-18T20:29:12.805-05:00Creepy Dreadful Wonderful ParasitesA parasitologist's view of the worldParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.comBlogger1488125tag:blogger.com,1999:blog-629132641307534690.post-32951245835503468592024-03-18T20:06:00.000-05:002024-03-18T20:06:02.065-05:00Case of the Week 741<p>Wow, we are already on our 3rd filarial case! The following lovely case from Idzi Potters and the Institute of Tropical Medicine, Antwerp, is another microfilaria found in blood. </p><p>The patient is a middle aged male farmer from Central America who was noted to have mild eosinophilia on routine complete blood count. He is otherwise asymptomatic. The microfilariae measure approximately 175 micrometers in length. What is your identification?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXZYtk3g8Y_q3Gp7tn09TrjQf-UNIZW5fnnoXfHfAcMXycc6Qq389Fg3Nyfs50F2SoGcVJ-qpGHh9cSiG-HJ_RZvZtl0n-rRqVRQ0Hj1WukclU2ZXhvuEWDHHhBcEYW9LViHLQs1Rtys14dBiOmjE0zTt0a4AKlrQ0irjR6u25PRZMZPxlJbwNYJ0873M/s2560/COW3-1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="2560" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXZYtk3g8Y_q3Gp7tn09TrjQf-UNIZW5fnnoXfHfAcMXycc6Qq389Fg3Nyfs50F2SoGcVJ-qpGHh9cSiG-HJ_RZvZtl0n-rRqVRQ0Hj1WukclU2ZXhvuEWDHHhBcEYW9LViHLQs1Rtys14dBiOmjE0zTt0a4AKlrQ0irjR6u25PRZMZPxlJbwNYJ0873M/w400-h300/COW3-1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijsAalh58i6mZBGfkfJZuI6C6DUqLxf3QbPkFPmjKj65td48Qstzguszo3cfAM1KJDgEhU0ES02QMFpbimXaZ3mCHwgE8ChJly8XyWJs4Giib7GGQhdk6mdf4CztXwlPYMGks5bfmMOa_E9CVwzIV2aueXQQDneNBYzqDYbJIrYKZWnvz0RRpirc-orEg/s2592/COW3-2.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1943" data-original-width="2592" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijsAalh58i6mZBGfkfJZuI6C6DUqLxf3QbPkFPmjKj65td48Qstzguszo3cfAM1KJDgEhU0ES02QMFpbimXaZ3mCHwgE8ChJly8XyWJs4Giib7GGQhdk6mdf4CztXwlPYMGks5bfmMOa_E9CVwzIV2aueXQQDneNBYzqDYbJIrYKZWnvz0RRpirc-orEg/w400-h300/COW3-2.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgm3L8N3yfCZ_DdABmjoacVx5rophvkMBGcaiN42TH1FsttmoTeI4jKR2Xuz_3gUnZI8cs_utElcTeFKjNfxyYYZYXJ01s5OLU-Rxj0Uhqp68zfw6_ETxH3i1nJe_Di1E9M4auXV55LqWHhLg_axWPVau53VSfF08_hHcNUrnE06_BvE6ZtIUJ4FO7UOS8/s2592/COW3-3.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1943" data-original-width="2592" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgm3L8N3yfCZ_DdABmjoacVx5rophvkMBGcaiN42TH1FsttmoTeI4jKR2Xuz_3gUnZI8cs_utElcTeFKjNfxyYYZYXJ01s5OLU-Rxj0Uhqp68zfw6_ETxH3i1nJe_Di1E9M4auXV55LqWHhLg_axWPVau53VSfF08_hHcNUrnE06_BvE6ZtIUJ4FO7UOS8/w400-h300/COW3-3.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLSbDag3ABq2I9Wo9IRXHuIhyOK6lFkArJufxcAl6qNSHZOAV-2xV5xz-PVR4MU1Wktb55gXsDP3wl4t8waKXylYBJI6GX0Hugh62uLgdd6C_QvfnrViyaYwsSVo3vFUBhDpHmew-aM-LoRaseSnPmnATDZ-R0QNPrLRneInjqniL1uVWyIF6cKRRXArA/s2592/COW3-4.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1943" data-original-width="2592" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjLSbDag3ABq2I9Wo9IRXHuIhyOK6lFkArJufxcAl6qNSHZOAV-2xV5xz-PVR4MU1Wktb55gXsDP3wl4t8waKXylYBJI6GX0Hugh62uLgdd6C_QvfnrViyaYwsSVo3vFUBhDpHmew-aM-LoRaseSnPmnATDZ-R0QNPrLRneInjqniL1uVWyIF6cKRRXArA/w400-h300/COW3-4.jpg" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com1tag:blogger.com,1999:blog-629132641307534690.post-29468532092556744262024-03-11T19:43:00.001-05:002024-03-11T19:43:05.192-05:00Case of the Week 740<p>Welcome to our next filarial case by Idzi Potters and the Institute of Tropical Medicine, Antwerp. This week features the following lovely microfilariae seen in a Giemsa-stained thick blood film. They measure approximately 220 micrometers in length. Identification?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8W6SygnqlQmhNW7DtqGW7vgo6o_-HE6-sv6iCTWImRxo5bKUJy9Hn_JOMQZqmxuI6EZ66CfOPoAmAXFXpSyg1iVj5QOv6iQDqZOuHcU9Z8mvIuG9xI732zCDrxO2Qbqawdpd0PqIqtJWQ8mKg9fQ4GnKEcLvRHxSy53XMNf-fM2QoxFH6MtcOgY7UHdw/s2592/COW2-1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1943" data-original-width="2592" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj8W6SygnqlQmhNW7DtqGW7vgo6o_-HE6-sv6iCTWImRxo5bKUJy9Hn_JOMQZqmxuI6EZ66CfOPoAmAXFXpSyg1iVj5QOv6iQDqZOuHcU9Z8mvIuG9xI732zCDrxO2Qbqawdpd0PqIqtJWQ8mKg9fQ4GnKEcLvRHxSy53XMNf-fM2QoxFH6MtcOgY7UHdw/w400-h300/COW2-1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj88kKT0GneeNMCqYUZIxcGdvV7F0soBeZsr3yvgUpVhtsEvv8ngseH7Rjtej3ijLfFE4XFn8EE2iogGnu5-7r_pNbdzjqs07U9AP7XouKMfSVuKKWvVt_8NQ0-YH863jizijFhMTRtbhQ1p14fnhRON08VdbdmyAnJFrhiY34XpqPeNjo5S1W-b5p_muo/s2560/COW2-2.JPG" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="2560" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj88kKT0GneeNMCqYUZIxcGdvV7F0soBeZsr3yvgUpVhtsEvv8ngseH7Rjtej3ijLfFE4XFn8EE2iogGnu5-7r_pNbdzjqs07U9AP7XouKMfSVuKKWvVt_8NQ0-YH863jizijFhMTRtbhQ1p14fnhRON08VdbdmyAnJFrhiY34XpqPeNjo5S1W-b5p_muo/w400-h300/COW2-2.JPG" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHBkRAjnhfQwR0yIQgEqp_byKsG8QhoC64lmvUShBqAZV2mFOi72nsU3UH7Hwu3Doc6S4KdgUZ2CknKakZD6M8y3N45UzD-HdYSqg-pVztsA6cGHFfMHxQy7oi_2_gIa-P2irHrttCf9oszxNfo2y5_9Fq7TLOpGEqpYYjEAXOvGnzTWhALPlqq9AFljY/s2560/COW2-3.JPG" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="2560" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHBkRAjnhfQwR0yIQgEqp_byKsG8QhoC64lmvUShBqAZV2mFOi72nsU3UH7Hwu3Doc6S4KdgUZ2CknKakZD6M8y3N45UzD-HdYSqg-pVztsA6cGHFfMHxQy7oi_2_gIa-P2irHrttCf9oszxNfo2y5_9Fq7TLOpGEqpYYjEAXOvGnzTWhALPlqq9AFljY/w400-h300/COW2-3.JPG" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com3tag:blogger.com,1999:blog-629132641307534690.post-91544137125449964842024-03-10T21:12:00.002-05:002024-03-17T21:24:38.221-05:00Answer to Case 740<p>Answer to the <a href="https://parasitewonders.blogspot.com/2024/03/case-of-week-740.html" target="_blank">Parasite Case of the Week 741</a>: <i>Brugia malayi </i></p><p>Thanks to everyone who wrote in. This is one of my favorite microfilariae! </p><p>This case had 2 classic features that facilitated the identification: the pink sheath and separation of the 2 terminal nuclei in the tail (see arrows below). </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLKvr7_5vyX8hi-1sW0cgf6MFj3OouGdeN8GDG7JwDUiJsWXtYVcpGi4oV46vB4SLizkULWRIYonggWzoBofAcNR_5ZaZ7Lq7plkBMe24dTetxZ3R-tPippEAuToZP-FUSP3utkUxfBjlRRxpH1vdu6AAdISUnOiR6DRISHpDQcHhsE2_AmTgaE_NHsnk/s1352/COW_answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="804" data-original-width="1352" height="238" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLKvr7_5vyX8hi-1sW0cgf6MFj3OouGdeN8GDG7JwDUiJsWXtYVcpGi4oV46vB4SLizkULWRIYonggWzoBofAcNR_5ZaZ7Lq7plkBMe24dTetxZ3R-tPippEAuToZP-FUSP3utkUxfBjlRRxpH1vdu6AAdISUnOiR6DRISHpDQcHhsE2_AmTgaE_NHsnk/w400-h238/COW_answer.jpg" width="400" /></a></div><p>As I noted in the case last week, the sheath isn't always seen. Therefore, the larger length and tail nuclei configuration can allow for the identification, even when the sheath is absent. </p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-78794801563187382462024-03-03T19:26:00.004-06:002024-03-07T11:01:30.373-06:00It's Finally Here - Filariasis Month with Idzi Potters! Case of the Week 739<p>Dear Readers,</p><p>Welcome to Filariasis Month! We will actually have TWO months of filariae for you as there are so many to cover and so many beautiful cases by Idzi and the <a href="https://www.itg.be/en" target="_blank">Institute of Tropical Medicine, Antwerp</a>.</p><p>Idzi and I thought that we should start out with an 'easy' one. The following objects were seen on a blood smear from a patient living in Gabon. They are approximately 250 micrometers long. What is your identification? Bonus question: what additional laboratory test is important for guiding treatment?</p><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwW3s0vSS_Ee5TMJ38HCGgoywhF9tgOx57yk6YmRJg3rS4JS_s6EGFLUCDWcQHxrD6BqMlCtTJ7bheUg8Y_Gw' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br /><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzuDtzTnjl4E-ociEGgA6m2C1CW3s2JrXQ6xpfxv7vMp-ldlsE9wkgFwplntcH_de6_Ld9PWKVUMcdnOdU4zw' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;">Giemsa stained blood films:</div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_OrPe8GbWtSa2rMFK5AAcbWD4MDNT2RfoE0MakgUQu64AL7IPkIaDwVJjx8F7qlKp2n1ztjMsKPOzHdPT1Btt8PkCWDjyq5xitaYwJ9DgTjeQ1CPM59VkoUdnfcFtCBVvq-DNapL9VH46bejQsQ-GO5ABnIyhhwF_Ano1uSNcRJ0Vd5srWdyscTOfOGY/s2560/COW1-3.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1920" data-original-width="2560" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_OrPe8GbWtSa2rMFK5AAcbWD4MDNT2RfoE0MakgUQu64AL7IPkIaDwVJjx8F7qlKp2n1ztjMsKPOzHdPT1Btt8PkCWDjyq5xitaYwJ9DgTjeQ1CPM59VkoUdnfcFtCBVvq-DNapL9VH46bejQsQ-GO5ABnIyhhwF_Ano1uSNcRJ0Vd5srWdyscTOfOGY/w400-h300/COW1-3.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvMfAjrblem8dTSG-ieiB2a-RHxJ_X5KcIr-ZWJ4TqMfeytaDgyfPv5leH1D4AhH1IJtg7Sz0hd_PyN1lJR5tPl-l916TmaEDDRJrS-_cvj-pOcFSxf00SnPz4Gv4a1zKlmwvPCdqqAKqHmc7UztC2E5q38bsQuv4uUUcjxqXjFf02tZ7q_kCQBrHOdJA/s1600/COW1-4.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1200" data-original-width="1600" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvMfAjrblem8dTSG-ieiB2a-RHxJ_X5KcIr-ZWJ4TqMfeytaDgyfPv5leH1D4AhH1IJtg7Sz0hd_PyN1lJR5tPl-l916TmaEDDRJrS-_cvj-pOcFSxf00SnPz4Gv4a1zKlmwvPCdqqAKqHmc7UztC2E5q38bsQuv4uUUcjxqXjFf02tZ7q_kCQBrHOdJA/w400-h300/COW1-4.jpg" width="400" /></a></div><div><br /></div>Carazzi stain, Knott's concentration:<br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmKcduPSVbMttfqhFR8BXbVsoKfVYjmxPilblz6wnZQgR1bPKrrxGSpnZP2tJ-2rCFHtkjblCeFxKL1oWZSviW1MDtr5IUy00VSKGRfPrMqYWvHQseLR63veIAhKh8fyYFFyE2mqWPJmXT5zj-3MLePhWxjyu-upy6oGUdTxTPqAd2zcHtVU2BpPmLwxo/s1597/COW1-5.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1048" data-original-width="1597" height="263" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgmKcduPSVbMttfqhFR8BXbVsoKfVYjmxPilblz6wnZQgR1bPKrrxGSpnZP2tJ-2rCFHtkjblCeFxKL1oWZSviW1MDtr5IUy00VSKGRfPrMqYWvHQseLR63veIAhKh8fyYFFyE2mqWPJmXT5zj-3MLePhWxjyu-upy6oGUdTxTPqAd2zcHtVU2BpPmLwxo/w400-h263/COW1-5.jpg" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com12tag:blogger.com,1999:blog-629132641307534690.post-57417402618121598792024-03-02T10:35:00.001-06:002024-03-07T14:24:13.594-06:00Answer to Case 739<p> Answer to <a href="https://parasitewonders.blogspot.com/2024/03/its-finally-here-filariasis-month-with.html" target="_blank">Parasite Case of the Week 739</a>: <i>Loa loa </i>microfilariae</p><p>Thanks to everyone who wrote in with comments. We received a lot of different responses including some of the sheathed and unsheathed microfilariae. Therefore, this is a great time to review my approach to identifying microfilariae in blood specimens. You can also read <a href="https://pubmed.ncbi.nlm.nih.gov/31340993/" target="_blank">this article </a>I wrote with Blaine Mathison and Marc Couturier that provides a diagnostic algorithm for microfilariae in blood. In this algorithm, we recommend first measuring the length of the microfilariae. If they are small (<200 micrometers long), then it is likely to be one of the <i>Mansonella </i>species. <i>Mansonella </i>are not sheathed, small, and quite narrow. Their width is smaller than the diameter of a neutrophil or eosinophil. If, on the other hand, the microfilariae are relatively large (>200 micrometers), then you are dealing with <i>Wuchereria bancrofti, Loa loa, </i>or one of the <i>Brugia </i>species. These are sheathed microfilariae, but the sheath may not always be readily visible on Giemsa stain. Therefore, the size is a more reliable diagnostic feature. To better visualize the sheath, a hematoxylin stain can be performed such as the Carazzi or Delafield hematoxylin stain. (Note: the hematoxylin and eosin stain used in histopathology preparations can also be used, so if you don't have a hematoxylin stain for microfilariae, you can ask for help from your friends in anatomic pathology!) These larger microfilariae can then be differentiated by characteristics of their head and tail spaces. </p><p>With that introduction, let's turn to the specifics of this week's case. I forgot to provide the length - my apologies! - I've now added it to the case description (~250 micrometers long). You can also get a general sense of the size of the microfilariae by comparing their diameter to the surrounding white blood cells. Note in this image below that the width of sheathed microfilariae such as <i>Loa loa </i>is slightly greater than the diameter of the neighboring eosinophils. Also, there is a hint of sheath (arrows). In contrast, the <i>Mansonella perstans </i>microfilaria in the image on the right is narrower than the surrounding eosinophils. </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7PtiU-y4JtVyUr6Kld-N7Jfcvgn4pbkj9TAm22FUC_9tLYiF4uknCkxun4DYQ2vICAyZeveyCfVtvf-w1RnqcSgIr8bk6HA3m7siE9950VfJ1BZJ8HZCnxOV6o4GrKyljQBr5TN5MJyx5AhE2hauNDXAmcv7QUNBL6fmO1RG5-RU3smfbMYsCjjhV0pw/s900/COW1-answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="490" data-original-width="900" height="217" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7PtiU-y4JtVyUr6Kld-N7Jfcvgn4pbkj9TAm22FUC_9tLYiF4uknCkxun4DYQ2vICAyZeveyCfVtvf-w1RnqcSgIr8bk6HA3m7siE9950VfJ1BZJ8HZCnxOV6o4GrKyljQBr5TN5MJyx5AhE2hauNDXAmcv7QUNBL6fmO1RG5-RU3smfbMYsCjjhV0pw/w400-h217/COW1-answer.jpg" width="400" /></a></div><p>Importantly, you can also see a sheath with the Carazzi stain that Idzi provided. Therefore, we can rule out the two <i>Mansonella </i>species found in blood by this finding alone. </p><p>Note that the nuclei go to the tip of the tail, which makes this a classic case of <i>Loa loa. </i>(one of my favorite memory aids is that the nuclei 'flow-a flow-a to the tip in <i>Loa loa</i>). </p><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig4p2TWraMZ-_43eadxY4FgLOK8jPaU3Vu6-awak-Qufq5L170LwY_TIFZXFoPd6YhDBCevSp2IWbNNp98L-VBJNMnSZWt4nlX_WQIgx-qt3lWwDv617phb4zjYM_2ur41Lao4O2SzOErvyR0sSViTW8sLjsZUPL8VfLAKOSzO7tHZ7pY8w6DHHhX09i0/s496/COW_answer2.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="496" data-original-width="382" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEig4p2TWraMZ-_43eadxY4FgLOK8jPaU3Vu6-awak-Qufq5L170LwY_TIFZXFoPd6YhDBCevSp2IWbNNp98L-VBJNMnSZWt4nlX_WQIgx-qt3lWwDv617phb4zjYM_2ur41Lao4O2SzOErvyR0sSViTW8sLjsZUPL8VfLAKOSzO7tHZ7pY8w6DHHhX09i0/w308-h400/COW_answer2.jpg" width="308" /></a></div><p>To answer my second question - the additional study that should be considered in this case is calculation of the microfilarial burden since patients with >8,000 microfilariae/mL are at risk of encephalopathy when treated with diethylcarbamazine (DEC).</p><p>Thanks again to Idzi Potters and the Institute of Tropical Medicine, Antwerp, for this great case! The next case will come out early next week.</p><p><br /></p><p> </p><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-78895709250956406892024-02-14T19:24:00.000-06:002024-02-14T19:24:11.513-06:00Get Ready for Filariae!<p>Dear Readers, I'm delighted to announce that March and April are <span style="color: #674ea7;"><b>Filariasis Months </b></span>courtesy of Idzi Potters and the Institute of Tropical Medicine in Antwerp! </p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEg-lLhJndKypju9Q82yg0uwANYxKYq9I4K4ubIBKlbXJMA2luHgnWt5SPwqX6CUXL8WgA8G5PMk1OGOuJMJfwYQ1_7B_6xoCiF_bMtLX5OD2E5RTg0HoWAQ07A0D8voeQPVkoJJkjm401JiOxCW7wKH84va3oHYoKnB4m6SWMvMj4FPTCO4wtMv3VZTGTY" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="236" data-original-width="260" height="240" src="https://blogger.googleusercontent.com/img/a/AVvXsEg-lLhJndKypju9Q82yg0uwANYxKYq9I4K4ubIBKlbXJMA2luHgnWt5SPwqX6CUXL8WgA8G5PMk1OGOuJMJfwYQ1_7B_6xoCiF_bMtLX5OD2E5RTg0HoWAQ07A0D8voeQPVkoJJkjm401JiOxCW7wKH84va3oHYoKnB4m6SWMvMj4FPTCO4wtMv3VZTGTY" width="264" /></a></div><br /><div style="text-align: center;"><i>Image by Blaine Mathison</i></div><p></p><p>You may want to brush up on your filariae/microfilariae diagnostic skills in preparation. Here are a few resources to help you:</p><p></p><ol style="text-align: left;"><li> World Health Organization Bench Aids for the Diagnosis of Filarial Infections. Available here: <a href="https://www.cdc.gov/dpdx/diagnosticprocedures/index.html">https://www.cdc.gov/dpdx/diagnosticprocedures/index.html</a> (see the section on filariasis near the bottom right of the page)</li><li>CDC DPDx - Laboratory Identification of Parasites of Public Health Concern:</li><ul><li><a href="https://www.cdc.gov/dpdx/lymphaticfilariasis/index.html" target="_blank">Lymphatic filariasis</a></li><li><a href="https://www.cdc.gov/dpdx/mansonellosis/index.html" target="_blank">Mansonellosis</a></li><li><a href="https://www.cdc.gov/dpdx/loiasis/index.html" target="_blank">Loiasis</a></li><li><a href="https://www.cdc.gov/dpdx/onchocerciasis/index.html" target="_blank">Onchocerciasis</a></li></ul><li>Mathison, Couturier, and Pritt Diagnostic Identification and Differentiation of Microfilariae. J Clin Microbiol 2019. <a href="https://journals.asm.org/doi/10.1128/jcm.00706-19">https://journals.asm.org/doi/10.1128/jcm.00706-19</a></li></ol><div>Stay tuned for more!</div><div><br /></div><p></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com1tag:blogger.com,1999:blog-629132641307534690.post-12579024834117692532024-02-07T02:42:00.013-06:002024-02-08T01:46:11.871-06:00Case of the Week 738<p>This week's case was donated by Dr. Sheldon Campbell. The following object was noted in fresh sole. </p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggQfAb9OgbD0e72RPxlb6pildgA6joqgTQzVrDRcxl_JoMiI51ZA9okN5-hAZi0queOvnPA6i2ebkKVY58FpaqLQU52nUtk5TPBjvaB2f6T-WkfZDBMqZQIL0KIGGXsPO8qNg-99ZlHrQTFmMm65cw8Tfo0tc-uv5Q3cpiOEbKexJShshhkdHBxvlxYNU/s4032/IMG_3585.heic" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="4032" data-original-width="3024" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggQfAb9OgbD0e72RPxlb6pildgA6joqgTQzVrDRcxl_JoMiI51ZA9okN5-hAZi0queOvnPA6i2ebkKVY58FpaqLQU52nUtk5TPBjvaB2f6T-WkfZDBMqZQIL0KIGGXsPO8qNg-99ZlHrQTFmMm65cw8Tfo0tc-uv5Q3cpiOEbKexJShshhkdHBxvlxYNU/w480-h640/IMG_3585.heic" width="480" /></a></div>Interestingly, it was still alive!<br /><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dz4p9kkRzOxRoZO_iPr-mn3LR2BJkQXyk6aNk4vslBwwYKkCcR1OcXFZ3XTAsmtia7R2WmHFpgKgSiLpcKIlQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><div class="separator" style="clear: both; text-align: left;"><br /></div><div class="separator" style="clear: both; text-align: left;"> What parasite is present here? </div><div class="separator" style="clear: both; text-align: left;"><br /></div><div class="separator" style="clear: both; text-align: left;">After carefully removing the worms, the sole was breaded in cornmeal and fried. Looks delicious! </div>Would you eat this?<br /><div><br /></div><div><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjf3ygTpQoBR95SU8sygznPDk02T5T_CxZ57aAyNf07_PlIW6CX7zRwyULsjUqXfhvvd0eZpc6i3xYt99IY3ppjVJisBLoSFhSNZ1nM_DK-v8jcuv1r6cw3wZcqljXn00MWzlzyzalqekZ9c9F-ReE48fmk-s7QxGrg0wiUqFbgT7Isy50-QVMjPlvCcws/s4032/IMG_3593.heic" style="margin-left: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="4032" data-original-width="3024" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjf3ygTpQoBR95SU8sygznPDk02T5T_CxZ57aAyNf07_PlIW6CX7zRwyULsjUqXfhvvd0eZpc6i3xYt99IY3ppjVJisBLoSFhSNZ1nM_DK-v8jcuv1r6cw3wZcqljXn00MWzlzyzalqekZ9c9F-ReE48fmk-s7QxGrg0wiUqFbgT7Isy50-QVMjPlvCcws/w300-h400/IMG_3593.heic" width="300" /></a></div>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com9tag:blogger.com,1999:blog-629132641307534690.post-73459721100065700722024-02-06T17:59:00.001-06:002024-02-12T18:06:17.457-06:00Answer to Case 738<p>Answer to the <a href="https://parasitewonders.blogspot.com/2024/02/case-of-week-738.html" target="_blank">Parasite Case of the Week 738</a>: Probable anisakid larva in fresh fish (sole). This is a great reminder to cook your fish well before eating! Alternatively, freeze it for 7 days at -20 C before eating it raw. The final dish that Dr. Campbell created looked quite tasty (sans worms). </p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhgxU8TYBokKEdyik0wjQ5dqi6EdHw1O-v07U8LI7tqIvrDmWI3WGJ4WaIzfnN0RNsHYj6nNNK26q1QAqv6C0Jg4noW9O8NW_tVLPH0Hrxfa8NKiHAXvY2AukWZTjJe1pYHWSUBd57qE9l_4xoQ3uBChRrzzxtZXUS5kZBmaSOBEeBXTrxOLrI_fcfNbzI" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="" data-original-height="4032" data-original-width="3024" height="640" src="https://blogger.googleusercontent.com/img/a/AVvXsEhgxU8TYBokKEdyik0wjQ5dqi6EdHw1O-v07U8LI7tqIvrDmWI3WGJ4WaIzfnN0RNsHYj6nNNK26q1QAqv6C0Jg4noW9O8NW_tVLPH0Hrxfa8NKiHAXvY2AukWZTjJe1pYHWSUBd57qE9l_4xoQ3uBChRrzzxtZXUS5kZBmaSOBEeBXTrxOLrI_fcfNbzI=w480-h640" width="480" /></a></div>Not just a few readers noted that they might have some hesitation in eating the final product. ๐<br /><br /><p></p><p>One reader commented that generous application of lemon juice to the thawed fish prior to cooking does a great job in removing any live worms (and may result in a mass exodus!) However, this is only a good solution if you like the taste of lemon ๐.</p><p>Thanks again to Dr. Campbell for sharing this great case!</p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com3tag:blogger.com,1999:blog-629132641307534690.post-6207011821808256452024-02-01T16:36:00.005-06:002024-02-01T16:36:39.675-06:00Case of the Week 737<p> This week's case was generously donated by Dr. Richard Bradbury. The is a permanent mounted stool sample from a Gambian child with watery diarrhea. It is stained with iron haematoxylin; objects of interest are approximately 10-15 micrometers long. </p><p>Check out the video for a 3D view and classic motility pattern!</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBQQXC9kve1CXofmU3LXE49cEiyYbkWNj9kJtX9dsaldGcT3LCDT-qIYVDAjJXL2rELtFWBRK1qUoTFPljCpjblS9OY-a9tMQZkLhpBP4-piGLHG_IBHAb55l31HbLzl9l-x9W4ogaGeLjDfW42R1tt85EIU1mVe1j1PnQHVpKfpoWDC1iKTJkRbq42W4/s1836/IMG_001804.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1680" data-original-width="1836" height="366" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBQQXC9kve1CXofmU3LXE49cEiyYbkWNj9kJtX9dsaldGcT3LCDT-qIYVDAjJXL2rELtFWBRK1qUoTFPljCpjblS9OY-a9tMQZkLhpBP4-piGLHG_IBHAb55l31HbLzl9l-x9W4ogaGeLjDfW42R1tt85EIU1mVe1j1PnQHVpKfpoWDC1iKTJkRbq42W4/w400-h366/IMG_001804.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh46yRYOpZIQ1xbWNLFrUcqHcRrp5YkkR0yNTW3J_1ogHyddKQmWXoSWDIuGGkwjpnBGyHJFgvj0OFsUfNTHucwNv-9IwRYJ3KoQCDr8Pr2mJoYtXyAe1N-AX-JFVGLt0epjk6R41sDnRU3Ce8ghjcF718D9yp-QqdIvZXSRgENgcqHJ71IFDfvmKrbaaE/s1944/IMG_001806.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1668" data-original-width="1944" height="344" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh46yRYOpZIQ1xbWNLFrUcqHcRrp5YkkR0yNTW3J_1ogHyddKQmWXoSWDIuGGkwjpnBGyHJFgvj0OFsUfNTHucwNv-9IwRYJ3KoQCDr8Pr2mJoYtXyAe1N-AX-JFVGLt0epjk6R41sDnRU3Ce8ghjcF718D9yp-QqdIvZXSRgENgcqHJ71IFDfvmKrbaaE/w400-h344/IMG_001806.jpg" width="400" /></a></div><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxPknMxkU6zBqfYZGrNG2pz9Lve7eftcbOIuikPQcrQQiDEdydNeEG0f_JnyUmBe_p4NAupk0PbZs4981xCbQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwd0ud_C-Yj2nD-OTYKRrzBxrxI1w7Xyaeysw4uB9-a93kcBhjCYs1btIojEjoTNFYiP-NLgjNL330BALCCJg' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com8tag:blogger.com,1999:blog-629132641307534690.post-27741783039275464262024-01-30T20:46:00.004-06:002024-02-03T21:19:18.410-06:00Answer to Case 737<p> Answer to the <a href="https://parasitewonders.blogspot.com/2024/02/case-of-week-737.html" target="_blank">Parasite Case of the Week 737</a>: <i>Pentatrichomonas hominis </i>trophozoites. </p><p><i>P. hominis </i>trophozoites have 5 flagella: 4 are directed anteriorly, while the 5th is directed posteriorly, forming the outer edge of an undulating membrane. This results in characteristic motility that Richard likes to describe as "a man trapped inside a plastic bag" (!) I managed to capture a couple of still images from the video which show this phenomenon:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKOnooPR-oHYkM9rDXDlwdoZ6gv0v4KP-C5Fvz7wmt5XhJ_oohLwbPZqVmtZhYBp5cRxuXxp6uGgFD7mzwft3PL570c7muQZ40gHHJeQcIRXxk5tipzZqq552IYwHOpMl3ySGSKX63_cVf2e4zGYiiwxNagV9GyJPDhxA9cE63X0wawr-lHSTnZidrWC4/s428/CoTW_answer1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="360" data-original-width="428" height="336" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjKOnooPR-oHYkM9rDXDlwdoZ6gv0v4KP-C5Fvz7wmt5XhJ_oohLwbPZqVmtZhYBp5cRxuXxp6uGgFD7mzwft3PL570c7muQZ40gHHJeQcIRXxk5tipzZqq552IYwHOpMl3ySGSKX63_cVf2e4zGYiiwxNagV9GyJPDhxA9cE63X0wawr-lHSTnZidrWC4/w400-h336/CoTW_answer1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5rqJx4LeejoOuVYcdBkHAbT-uYKuBaQXsGzd3ozKSU4iVhppicbs1fyRd5kZXuz7YmjEj07IpVRGwqMVdG0YhO0af6qNvYMNZ6FStiy-3fwI742dgO9xUjnFw3zT14mTt4VCFh4TUJjCmCY9wiFnZAvWX3O-hnotazcVTgav-aoBU1A3L-H1P3UrCjCQ/s428/CoTW_answer2.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="364" data-original-width="428" height="340" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj5rqJx4LeejoOuVYcdBkHAbT-uYKuBaQXsGzd3ozKSU4iVhppicbs1fyRd5kZXuz7YmjEj07IpVRGwqMVdG0YhO0af6qNvYMNZ6FStiy-3fwI742dgO9xUjnFw3zT14mTt4VCFh4TUJjCmCY9wiFnZAvWX3O-hnotazcVTgav-aoBU1A3L-H1P3UrCjCQ/w400-h340/CoTW_answer2.jpg" width="400" /></a></div><div class="separator" style="clear: both; text-align: left;">As noted by jebarner, <i>P. hominis, </i>as well as <i>Enteromonas hominis, </i> <i>Retortamonas intestinalis</i>, and <i>Chilomastix mesnili </i>are non-pathogens and indicators of ingestion of fecally contaminated food or water.<i> </i>Therefore, the cause of this child's symptoms is unclear from this finding alone, and additional testing may be indicated.</div><div class="separator" style="clear: both; text-align: left;"><i><br /></i></div><div class="separator" style="clear: both; text-align: left;">Thanks again to Dr. Richard Bradbury for sharing this beautiful case!</div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-25830026285299624662024-01-25T08:47:00.001-06:002024-01-25T08:48:20.395-06:00Case of the Week 736<p>The following arthropods were submitted to the lab for identification from a daycare center. What is your identification? What are the implications for this facility?</p><p><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhckHuJ63DFiSwZQAl9yLbTAyrEzbyG4oWlj61B04VObLaDopKHBouJsFqoO9DOANnWHvL6QJg91AfLnRIwHdiT-wCRL72bIDjlKhrrkjaeC-AWaoLppTaIR2oKiU0GKyZgvSdANNOZsyMUTr5gpkBQwH7cgUfSGTy7RGJrVeS-Atr4J156m-I2OWSp_QQ/s1500/CoTW1.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em; text-align: center;"><img border="0" data-original-height="1125" data-original-width="1500" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhckHuJ63DFiSwZQAl9yLbTAyrEzbyG4oWlj61B04VObLaDopKHBouJsFqoO9DOANnWHvL6QJg91AfLnRIwHdiT-wCRL72bIDjlKhrrkjaeC-AWaoLppTaIR2oKiU0GKyZgvSdANNOZsyMUTr5gpkBQwH7cgUfSGTy7RGJrVeS-Atr4J156m-I2OWSp_QQ/w400-h300/CoTW1.jpg" width="400" /></a></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXXqXpJJC3T_Bc9lVxDot1qd6BEY-5Nm4suOZhKKvNbEFbJwFv2vC2LU010FnVK8xn205XPFR_V4tdzuhc-2teu_4nmev7sofFC9svlK6TtWcGckmQ1-VAQMXouOeYVJPMCtAchdkaI8mv2a4vrkXoPuTxCP9Wp2NlOQPV1AZepFhdDxm2pRMGP5tUbHg/s1500/CoTW2.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1125" data-original-width="1500" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiXXqXpJJC3T_Bc9lVxDot1qd6BEY-5Nm4suOZhKKvNbEFbJwFv2vC2LU010FnVK8xn205XPFR_V4tdzuhc-2teu_4nmev7sofFC9svlK6TtWcGckmQ1-VAQMXouOeYVJPMCtAchdkaI8mv2a4vrkXoPuTxCP9Wp2NlOQPV1AZepFhdDxm2pRMGP5tUbHg/w400-h300/CoTW2.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqH56tL1Ha6c8z2FtSalIjXFzmklQk-RectKKYM9CC40IaXUoJERB_jcoMFbBTSAsRY6eBrgTbkEEWTGFb2HuB7Fgk5zl3w44qJeXzLhLamY2yKavqh0fyXbDAaxW9zJeuDj6MH-dBtzAgI9UxNbMYLdYaFK60gAjB4UHJsXumvC9korRW5aKUqR2m2Ts/s1500/CoTW4.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1125" data-original-width="1500" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqH56tL1Ha6c8z2FtSalIjXFzmklQk-RectKKYM9CC40IaXUoJERB_jcoMFbBTSAsRY6eBrgTbkEEWTGFb2HuB7Fgk5zl3w44qJeXzLhLamY2yKavqh0fyXbDAaxW9zJeuDj6MH-dBtzAgI9UxNbMYLdYaFK60gAjB4UHJsXumvC9korRW5aKUqR2m2Ts/w400-h300/CoTW4.jpg" width="400" /></a></div><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com9tag:blogger.com,1999:blog-629132641307534690.post-78537795173644749692024-01-24T07:48:00.001-06:002024-01-29T11:25:36.335-06:00Answer to Case 736<p>Answer to the <a href="https://parasitewonders.blogspot.com/2024/01/case-of-week-731.html" target="_blank">Parasite Case of the Week 736</a>: <i>Cimex </i>sp., the human bedbug. Nymphs and an adult are present. The two species of <i>Cimex </i>that infest humans are <i>C. lectularius </i>(the common bedbug) and its tropical relative, <i>C. hemipterus. </i>As noted by Idzi and Florida Fan, the setae (hairs) are shorter than the width of the eye, which allows us to rule out other cimicids of birds and mammals that may temporarily infest human habitats.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGcCk1ChLuUmVsQhioiMTuWGI6G30IiPlcB-BZg01YGQKi3T5XH0cp3uHmYnmJ95e_gIm02udCL1H5U7-8px8Wgz0Ytbk1YorK9_Lhcgr5nIYwBCj7j_P1MM4XzkMoO1MRHmw_Vqfed7SlogNdd2ZH3pL9H1IviMtbkpW6ASCYTU-otZBOeEMDXVGG690/s1500/CoTW_answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1125" data-original-width="1500" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhGcCk1ChLuUmVsQhioiMTuWGI6G30IiPlcB-BZg01YGQKi3T5XH0cp3uHmYnmJ95e_gIm02udCL1H5U7-8px8Wgz0Ytbk1YorK9_Lhcgr5nIYwBCj7j_P1MM4XzkMoO1MRHmw_Vqfed7SlogNdd2ZH3pL9H1IviMtbkpW6ASCYTU-otZBOeEMDXVGG690/w400-h300/CoTW_answer.jpg" width="400" /></a></div><p>Tanya Gravier provided a helpful <a href="https://www.epa.gov/sites/default/files/documents/Module07.pdf" target="_blank">link </a>from the US Environmental Protection Agency on dealing with bedbug infestations in child care centers. As noted by Idzi, the risk is not with disease transmission, but rather with human bites at the center (e.g., during nap time), and with the possibility of bringing the infestation to the children's' homes.</p><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-47337984914866811762024-01-17T12:29:00.001-06:002024-01-17T12:29:05.994-06:00Parasite Case of the Week 735<p>This week's case features a liver cyst (6 cm in diameter) that was removed and send to the parasitology laboratory for evaluation. The following images were taken by our fabulous Education Specialists, Felicity Norrie. Identification?</p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggrPz5n20tDL90dsUZFJX2vfuhdzFwLU8jCJHSqFxcnsT1F4-DcCNFxd3VMEFmKNwnnLAo6URfxZUSEHaDPCCdw09MEZDiNs3g8f6Ho5D58tiCOUNmiC-ncVbG9Ua4v3zh3QENC7WZC4c_SbwCkB89duhbL_5rG5ytuc1iTMqjPapvM0ttZgCSRaECjmA/s677/CoTW%20(1).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="677" data-original-width="600" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggrPz5n20tDL90dsUZFJX2vfuhdzFwLU8jCJHSqFxcnsT1F4-DcCNFxd3VMEFmKNwnnLAo6URfxZUSEHaDPCCdw09MEZDiNs3g8f6Ho5D58tiCOUNmiC-ncVbG9Ua4v3zh3QENC7WZC4c_SbwCkB89duhbL_5rG5ytuc1iTMqjPapvM0ttZgCSRaECjmA/w355-h400/CoTW%20(1).jpg" width="355" /></a></div><br /> <div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEheAhkCN4q06M26ihX6uv-VBVX4cqgbNlcDfBHGIWcyi4TqkgyaZ5N-mtkjFElNg6A2qrrN7i7mso2aVBOAzLF83Yaqx9Sw9lSff-aW4DbF2baA0iS5kypENemBAYGbJdQVKtl_IX67wCfTbOBdND4XefD3vGbRr_QrYzKpfPwhzGKgZtizhL-jerxI2a0/s1113/CoTW%20(4).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="942" data-original-width="1113" height="339" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEheAhkCN4q06M26ihX6uv-VBVX4cqgbNlcDfBHGIWcyi4TqkgyaZ5N-mtkjFElNg6A2qrrN7i7mso2aVBOAzLF83Yaqx9Sw9lSff-aW4DbF2baA0iS5kypENemBAYGbJdQVKtl_IX67wCfTbOBdND4XefD3vGbRr_QrYzKpfPwhzGKgZtizhL-jerxI2a0/w400-h339/CoTW%20(4).jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-Hf5h7YYHeOKh9P_gLU6OLzdCHhwD8Vmk1ubAl-1q1Z63qr0I4Wge81lyJzG-HS91R-OjQv7tpq-Hyf2VgjCGBJUT7_TwFuXTYKBZ9tDGoV44CGgjNI3B1EmMDyoYUrsGo8FZBPspjEHcE1d0qIABhBekpFpH2onUhnVSVVLpb8wJAXqoxRF2e0lS504/s1266/CoTW%20(2).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1035" data-original-width="1266" height="328" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-Hf5h7YYHeOKh9P_gLU6OLzdCHhwD8Vmk1ubAl-1q1Z63qr0I4Wge81lyJzG-HS91R-OjQv7tpq-Hyf2VgjCGBJUT7_TwFuXTYKBZ9tDGoV44CGgjNI3B1EmMDyoYUrsGo8FZBPspjEHcE1d0qIABhBekpFpH2onUhnVSVVLpb8wJAXqoxRF2e0lS504/w400-h328/CoTW%20(2).jpg" width="400" /></a></div><br /><p></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com6tag:blogger.com,1999:blog-629132641307534690.post-76779124424139478742024-01-16T10:37:00.001-06:002024-01-20T19:03:17.499-06:00Answer to Case 735<p> Answer to the <a href="https://parasitewonders.blogspot.com/2024/01/parasite-case-of-week-735.html" target="_blank">Parasite Case of the Week 735</a>: <i>Echinococcus </i>species.</p><p>The diagnosis can be made by the finding of the characteristic protoscoleces. As noted by Florida Fan, "On a closer look, the hooklets are clearly visible as well as the numerous calcareous particles. Since there is one cyst, the indication is that the agent is <i>Echinococcus granulosis</i>.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHL7y5VoUqRfthqMXGNnUuC-qsrj1ICOZ38MoP8gLsHeO28QjVrLhPv2Wrm9SAPL7ANgHl15URnh7xvxjDvzj_-hA_5deayU5CGxHD9ceVsil-IPBC2ihcu4EJy932qiOIrPg4Yk5mfex4PQaHkyRzqQ8D3Tzw6j5z3jF3YM9TtbYNz9IAVi8vlLHQ6oo/s1113/CoTW_answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="794" data-original-width="1113" height="285" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHL7y5VoUqRfthqMXGNnUuC-qsrj1ICOZ38MoP8gLsHeO28QjVrLhPv2Wrm9SAPL7ANgHl15URnh7xvxjDvzj_-hA_5deayU5CGxHD9ceVsil-IPBC2ihcu4EJy932qiOIrPg4Yk5mfex4PQaHkyRzqQ8D3Tzw6j5z3jF3YM9TtbYNz9IAVi8vlLHQ6oo/w400-h285/CoTW_answer.jpg" width="400" /></a></div><p>A Hamburg-based Oregon alumni further noted that for <i>E. granulosus, </i>"The liver is the most frequent location of echinococcal cysts (approx. 70% of cases). The lungs are the second most common location."</p><p>Thanks again to Felicity from my lab to taking these beautiful photos!</p><p><br /></p><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-15694112861769731412024-01-10T18:28:00.005-06:002024-01-10T18:28:43.584-06:00Case of the Week 734<p>Welcome to the first blog post of 2024! I had been particularly busy last year as I was serving as the Interim Chair of the Department of Laboratory Medicine and Pathology at Mayo Clinic. Now that the permanent Department Chair has arrived, I can go back to my 'day job' of Chair of Clinical Microbiology and Director of the Clinical Parasitology laboratory. I anticipate being able to go back to regular posting again as well. </p><p>So without further ado, here is our case this week, courtesy of Heather Morris, the Parasitology Technical Specialist in my laboratory. The following objects were found in a concentrated wet preparation of stool, and measure approximately 20 micrometers in diameter. No patient history is available. What is your identification?</p><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4z_MNo81v0vxl_vOliJspCsXy5g9i21SNWRzSrAeNhvLP0buPm17LNjaLhmZh9Ri-n0HJTaPlbVNWxAQbDKuCBpznRAI_VxwhL6oabjCf_oek_DnvUgZhpDLIS5XwRpoaj-sgJF3D4Z9iTGW_jKuSIcltJzENTEJQbsRD2CA7WzitdsjGhxTdrwyMz_8/s2880/CoTW%20400x%20(3).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2048" data-original-width="2880" height="285" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh4z_MNo81v0vxl_vOliJspCsXy5g9i21SNWRzSrAeNhvLP0buPm17LNjaLhmZh9Ri-n0HJTaPlbVNWxAQbDKuCBpznRAI_VxwhL6oabjCf_oek_DnvUgZhpDLIS5XwRpoaj-sgJF3D4Z9iTGW_jKuSIcltJzENTEJQbsRD2CA7WzitdsjGhxTdrwyMz_8/w400-h285/CoTW%20400x%20(3).jpg" width="400" /></a></div><p></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRDj3GApBLA_KrOucWUZkRkI9JG3X2hPgkEzBAqb3OIVYaXrDDa295lNQ1firGrsij_FrJhyphenhyphenL-YNdvJimxz9kPLDUBj9oMENHEDiovWTzuqg5zYMhQ3bAupuR_Na9I-CNvnAPPWNUsL8hfXAzKhVEKpWpEJ3GXtiK8USxWi1OZJW6fjFS_7crDZY13Ep4/s2880/CoTW%20400x%20(1).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2048" data-original-width="2880" height="285" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRDj3GApBLA_KrOucWUZkRkI9JG3X2hPgkEzBAqb3OIVYaXrDDa295lNQ1firGrsij_FrJhyphenhyphenL-YNdvJimxz9kPLDUBj9oMENHEDiovWTzuqg5zYMhQ3bAupuR_Na9I-CNvnAPPWNUsL8hfXAzKhVEKpWpEJ3GXtiK8USxWi1OZJW6fjFS_7crDZY13Ep4/w400-h285/CoTW%20400x%20(1).jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiITp8JMnq0omzHptY0xqnx0nHfgH14MQwwJr4ARBjO1uRf1zktyZzcJCqSztmzMeSXPX-p9FBbEAhwTS2cYxt8ErICVn3-mtnS2SVaL_0bU5BXfkSZmySfjq42ZqP1gl-bGcUAflO8eibNSRKcHr3brSvuaiMj68SdVblws5z7_VfmMIMmLgzF_BTfCLk/s2880/CoTW%20400x%20(2).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2048" data-original-width="2880" height="285" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiITp8JMnq0omzHptY0xqnx0nHfgH14MQwwJr4ARBjO1uRf1zktyZzcJCqSztmzMeSXPX-p9FBbEAhwTS2cYxt8ErICVn3-mtnS2SVaL_0bU5BXfkSZmySfjq42ZqP1gl-bGcUAflO8eibNSRKcHr3brSvuaiMj68SdVblws5z7_VfmMIMmLgzF_BTfCLk/w400-h285/CoTW%20400x%20(2).jpg" width="400" /></a></div><br /><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com6tag:blogger.com,1999:blog-629132641307534690.post-85085747580334517042024-01-09T11:09:00.001-06:002024-01-13T11:35:39.823-06:00Answer to Case 734<p> Answer to the <a href="https://parasitewonders.blogspot.com/2024/01/case-of-week-734.html" target="_blank">Parasite Case of the Week 734</a>: <i>Entamoeba coli </i>cysts. </p><p>As noted by Florida Fan and Mary Lois Smorenburg noted, these cysts can be easily recognized by their large size and number of nuclei (>4). These are the most definitive features of this organism and allow it to be differentiated from similar-appearing <i>Entamoeba </i>spp. such as <i>E. histolytica. </i>Other supportive features pointed out by Mary Lois Smorenburg and Dr. Satishkumar Krishnan are the eccentric karyosome within each nucleus is and the irregular splinter shaped chromatoid body.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSqAlnsPm-lBUoBxPmHl1zx1nLgzcNy3gS02i4qJlG7cCC9igsyUAvA8ZhVQO4K6Y7ZPU-81tEmYOJvs47NbxktK2ETKraEVStjR4ZqUi3hH_Y2PVlyLM531hcd7lYb5uIhBh_J8nJfy-44jRWyBm9s7Y6nTakTsffk7K2uRRkY6P2-wKN5rAVP4xV708/s1500/CoTW%20400x%20(1).jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="1067" data-original-width="1500" height="285" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgSqAlnsPm-lBUoBxPmHl1zx1nLgzcNy3gS02i4qJlG7cCC9igsyUAvA8ZhVQO4K6Y7ZPU-81tEmYOJvs47NbxktK2ETKraEVStjR4ZqUi3hH_Y2PVlyLM531hcd7lYb5uIhBh_J8nJfy-44jRWyBm9s7Y6nTakTsffk7K2uRRkY6P2-wKN5rAVP4xV708/w400-h285/CoTW%20400x%20(1).jpg" width="400" /></a></div>Thanks again to Heather Morris for donating our first case of 2024!<br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-85114891617145179072023-12-07T11:01:00.001-06:002023-12-07T11:02:50.694-06:00Case of the Week 733<p> This week's case is by Idzi Potters and the <a href="https://www.itg.be/en" target="_blank">Institute of Tropical Medicine, Antwerp</a>. The following object was removed from a furuncular skin lesion in a patient with recent travel to Uganda. Once they were able to keep it still (!), Idzi captured the following photographs demonstrating all of the diagnostic features. What is your identification?</p><p></p><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwJt1sd1x0e3uDxHYLK4oN4jiba3ToQ1xyphj7WwxfnYAlPTo4Im_7LUs1BJRoOGELY4HA9lOGly-mtmpbIbw' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><div class="separator" style="clear: both; text-align: left;"><br /></div><div class="separator" style="clear: both; text-align: left;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEgrPOU64xxTl8kiXe2-fVE6QwMkmaltrVgG33Hnk9AniQkbAOS-Hdvn3pjkmcX0vvLU6bMVA2lZi2AGtHiWJTHF0kku1svZq-BazisYAlZSUQXL4_BbsPGm8cc4-wv2A0K6gssGuT51unt_w8S88BVwSIIYpcrZTFItj5rFSYUyJx1qWdJq_OoOrrFZ2ws" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/a/AVvXsEgrPOU64xxTl8kiXe2-fVE6QwMkmaltrVgG33Hnk9AniQkbAOS-Hdvn3pjkmcX0vvLU6bMVA2lZi2AGtHiWJTHF0kku1svZq-BazisYAlZSUQXL4_BbsPGm8cc4-wv2A0K6gssGuT51unt_w8S88BVwSIIYpcrZTFItj5rFSYUyJx1qWdJq_OoOrrFZ2ws=w400-h300" width="400" /></a></div><br /><br /></div><div class="separator" style="clear: both; text-align: left;"><br /></div><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhEnSIl4otGgUgTiMM650SuFJ50BzYfAvSF4TeYFoVkzvl_cFkQMUBQO5-CKZBxQil8-bCFj_LOGMS5nEAsWY-O3coD14qjC8lk8cYGGuwcQV5uN7_U7r-PEXNc_wrMmrVrI0dK0CG0EHiuw5ltZd2W9cIvsa5LUmtWgdeNx5DxF4z_8jjWmTSfe0WWJ3A" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/a/AVvXsEhEnSIl4otGgUgTiMM650SuFJ50BzYfAvSF4TeYFoVkzvl_cFkQMUBQO5-CKZBxQil8-bCFj_LOGMS5nEAsWY-O3coD14qjC8lk8cYGGuwcQV5uN7_U7r-PEXNc_wrMmrVrI0dK0CG0EHiuw5ltZd2W9cIvsa5LUmtWgdeNx5DxF4z_8jjWmTSfe0WWJ3A=w400-h300" width="400" /></a></div><br /><br /><br /></div><br /><br /><p></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com7tag:blogger.com,1999:blog-629132641307534690.post-53710916249740687852023-12-03T20:22:00.001-06:002023-12-11T16:58:17.509-06:00Answer to Case 733<p> Answer to the <a href="https://parasitewonders.blogspot.com/2023/12/case-of-week-733.html" target="_blank">Parasite Case of the Week 733</a>: <i>Cordylobia anthropophaga, </i>myiasis causing fly larva. </p><p>Florida Fan painted an accurate picture of this parasite with his vivid description: "The mango fly, aka Tumbu fly, lays eggs on human clothing hung to dry in the sun. The Man-Eating larvae hatching eats its way into the skin of its prey. The three sinuous slits are definite identification clues. Ironing the clothes dried outdoor kills the eggs and prevent a myasis infection. The video clearly exemplifies the voracious nature of The Beast." Very apt!</p><p>The adult female fly also commonly lays her eggs on sandy soil contaminated with urine and feces. The larvae hatch and may remain viable in the soil for 1-2 weeks while seeking a host. Upon contact with a suitable host, the larvae burrow into the skin of the host and develop for 8-12 days. They then emerge from the host and develop into pupae in the environment.</p><p>Extracted larvae can be identified based on the characteristics of their posterior spiracules, as well as their general body characteristics. There are several keys available for genus and species-level identification, including this <a href="https://www.cdc.gov/nceh/ehs/docs/pictorial_keys/Flies.pdf" target="_blank">older key from the CDC</a>. Blaine Mathison and I also published a <a href="https://pubmed.ncbi.nlm.nih.gov/24396136/" target="_blank">review on arthropod identification </a>which you may find helpful. </p><p>Along with this case, Idzi provided some great photos from previous posts for comparison:</p><p><i>Corydylobia rodhaina </i>(<a href="https://parasitewonders.blogspot.com/search?q=547" target="_blank">Case of the Week 547</a>):</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_REyUH1-DydqZit6oUcuAY-GoAJ9-Wz-pk7ta_6CkNozVsXpKpqlhg-GSQU3qRGnuQvWGEP5TX497Nwt6ly5f79htCvT-kxW98nQpGIVrxmgPA14tJgCCwH1akPaU-BtOq5wXH-aXJ6zxXIVqz9-0qfwfgRjR7hCijvxFnRPv6wtU4rO461jiI1GI7Y4/s3200/Cr-comp.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_REyUH1-DydqZit6oUcuAY-GoAJ9-Wz-pk7ta_6CkNozVsXpKpqlhg-GSQU3qRGnuQvWGEP5TX497Nwt6ly5f79htCvT-kxW98nQpGIVrxmgPA14tJgCCwH1akPaU-BtOq5wXH-aXJ6zxXIVqz9-0qfwfgRjR7hCijvxFnRPv6wtU4rO461jiI1GI7Y4/w400-h300/Cr-comp.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7ow02YBrxvmF3zrjus2La6WEvhyr5cEOjdpN4eoauGKDcNnSYZ4iaXBjGTCqMAP69GIbndLxslZhAeI3WrLSAGLVbYektgDHYXVrd109YyYAgYVJ7cQJ8dWIPpr45_hzB5hyfKH7ftSDv1T3BhEE3uU3IrpESZx18g6SACYVzRSXM7M2GQQRZjdkivcA/s3200/Cr-spir.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7ow02YBrxvmF3zrjus2La6WEvhyr5cEOjdpN4eoauGKDcNnSYZ4iaXBjGTCqMAP69GIbndLxslZhAeI3WrLSAGLVbYektgDHYXVrd109YyYAgYVJ7cQJ8dWIPpr45_hzB5hyfKH7ftSDv1T3BhEE3uU3IrpESZx18g6SACYVzRSXM7M2GQQRZjdkivcA/w400-h300/Cr-spir.jpg" width="400" /></a></div><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEgMHraywySoKBhO_UmzmoyYJt85x_7ZjNO3K2wLnYL9cXtl3rvknli5p1aVsCjZ3IKQa6CwBU7VkvB5vcA3NPpMZAvY0zZNzfjVO3g9EtNvWxuRXA1V_IBwiuZW2A-5UnVaJwurEM-Das-A0ICXGKXx8elQ4sJlSjNuAPkilqbwdxnBtHazGQJU22d9EOQ" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em; text-align: left;"><img alt="" data-original-height="846" data-original-width="1098" height="309" src="https://blogger.googleusercontent.com/img/a/AVvXsEgMHraywySoKBhO_UmzmoyYJt85x_7ZjNO3K2wLnYL9cXtl3rvknli5p1aVsCjZ3IKQa6CwBU7VkvB5vcA3NPpMZAvY0zZNzfjVO3g9EtNvWxuRXA1V_IBwiuZW2A-5UnVaJwurEM-Das-A0ICXGKXx8elQ4sJlSjNuAPkilqbwdxnBtHazGQJU22d9EOQ=w400-h309" width="400" /></a></div><br /><div style="text-align: left;"><i>Dermatobia hominis </i>(<a href="https://parasitewonders.blogspot.com/search?q=505" target="_blank">Case of the Week 505</a>):</div></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiwsk5FCvcAcj-2QWCaaJWoPnMSOlC6ToDfhd0-G-QSXQ5x2_m_8-TKBxasd7RzdIfPbDtAcKnpmhrqBp5u8807yjLnst2P0ITIY0WRJmuXL1bvhG7av3ZwpGaQowW5-0U9DO7PveSabQkvdKktYkrgFE6IiHn4rLGuX9GDN0GzHKkPI3nR7VuVrKSDr0/s3200/Dh-comp.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiwsk5FCvcAcj-2QWCaaJWoPnMSOlC6ToDfhd0-G-QSXQ5x2_m_8-TKBxasd7RzdIfPbDtAcKnpmhrqBp5u8807yjLnst2P0ITIY0WRJmuXL1bvhG7av3ZwpGaQowW5-0U9DO7PveSabQkvdKktYkrgFE6IiHn4rLGuX9GDN0GzHKkPI3nR7VuVrKSDr0/w400-h300/Dh-comp.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjM-c1hc3PyGk1Zkz64ZZSQEXSBzwTQ-SMb56T5b_YfALdQvYC558FryXQsFUz4-90CEvCRae9Ra3EaScG8tVcixP7ZoD9-MMJ6fKkWFFngoenO0AgSpS6I2cz9fjiortusn3Tal7tIMQ7C4UQ0trKRPwV3EQ1S117EGVilyMFjlHmjqTjpEX8auORJJqI/s3200/Dh-spir.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="2400" data-original-width="3200" height="300" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjM-c1hc3PyGk1Zkz64ZZSQEXSBzwTQ-SMb56T5b_YfALdQvYC558FryXQsFUz4-90CEvCRae9Ra3EaScG8tVcixP7ZoD9-MMJ6fKkWFFngoenO0AgSpS6I2cz9fjiortusn3Tal7tIMQ7C4UQ0trKRPwV3EQ1S117EGVilyMFjlHmjqTjpEX8auORJJqI/w400-h300/Dh-spir.jpg" width="400" /></a></div><p>Lastly, I'd encourage you to check out ITM's outstanding new podcast series entitled <a href="https://www.itg.be/nl/health-stories/podcast" target="_blank">Transmission</a>. Thanks again to Idzi and ITM for this great case!</p><p><br /></p><p><br /></p><div><br /></div>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com1tag:blogger.com,1999:blog-629132641307534690.post-91439199853023869022023-11-27T13:51:00.001-06:002023-11-27T13:54:11.541-06:00Case of the Week 732<p>Welcome back to all of my US readers from the Thanksgiving holiday. Here is a fun case with the answer embedded - just listen to the audio with the video. Or if you'd prefer, keep the volume down and give your best guess on what you think this is! </p><p>This case is donated by Dr. Jessica Lin and her colleague who is field physician in Tanzania. The patient is a 4 year old boy with anal pruritus and history of passing worms from his anus. Several white-tan worms measuring ~5mm long were examined:</p><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxntOu5EP6KEjKQHPUBGEXTf53ACPvcxmmJIHVQSQ2hvVStynJ-Pdm5onuSb07R-jQpOUPBN79yMCAqOTiPeQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br /><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzNMdaZrm3LTq3PUUmW5d10c-ftkreXnhsbfaDdBVQcTyj0um8dSMoi5J8r5JCcMJMLWPdfxT37Sat7IshS5A' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com7tag:blogger.com,1999:blog-629132641307534690.post-71294738947562535592023-11-26T07:36:00.002-06:002023-11-30T17:15:00.833-06:00Answer to Case 732<p> Answer to the <a href="https://parasitewonders.blogspot.com/2023/11/case-of-week-732.html" target="_blank">Parasite Case of the Week 732</a>: <i>Enterobius vermicularis </i>(pinworm) adult female. </p><p>As noted by Florida Fan, "Well, this is a classic situation. Children by nature are very altruistic, sharing their prize possessions (e.g., M&Mโs). The asymmetric eggs with a flat side and a convex side are commonly shared in this fashion." The appearance of the eggs is also called planoconvex or "D" shaped. Anonymous mentioned that the extensive uterine reproductive system of the fertilized female worm is often completely filled with with these eggs.</p><p>If you watched the video, you could see the movement of the eggs within the uterus, and appreciate the prominent lateral alae (arrows):</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0iWorfiFBOK8pT2jXAIqBDhOn4fJNoCgxAPxvaW1o4qN89RAs4d_Bomgzu_KKCOA3C-kXkCC50wqeKJCFSqe1sAT13-U8e_LgK0r6tqVi-P33gWZDf65kiyhBiJukkHtLanE8iaVTH-ydySv_dDnWrB73q7fc9TbFiv56OfYv2sXYSkpDDNKZQ_E3ZJ8/s306/Cotw_answer_1.jpg" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="306" data-original-width="304" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0iWorfiFBOK8pT2jXAIqBDhOn4fJNoCgxAPxvaW1o4qN89RAs4d_Bomgzu_KKCOA3C-kXkCC50wqeKJCFSqe1sAT13-U8e_LgK0r6tqVi-P33gWZDf65kiyhBiJukkHtLanE8iaVTH-ydySv_dDnWrB73q7fc9TbFiv56OfYv2sXYSkpDDNKZQ_E3ZJ8/w397-h400/Cotw_answer_1.jpg" width="397" /></a></div><div>Thanks again to Jessica Lin and her team for providing this fun case! <br /><p><br /></p></div>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-86739594883388821442023-11-15T19:20:00.000-06:002023-11-15T19:20:11.693-06:00Case of the Week 731<p> The following objects were seen in fluid aspirated from a cyst in the liver. Identification?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsL6BHZxCPtIP-I3l9C-hAVgZfMozMhCNtVHaI4UjpfOMYOE7gKS6GcFvjmEeMBg-Rk1-pacxmZUIIchmTv8aznH_saXiKhySmwDQSiEFZWuf51k_ZfiDOE5NX8fZ-1SofTEKwnPx7oeFfVopt158lgaRAVwQv71NVxm7DoygdFU9AR2a0RR0VHRnN_e4/s1500/CoTW1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="844" data-original-width="1500" height="225" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhsL6BHZxCPtIP-I3l9C-hAVgZfMozMhCNtVHaI4UjpfOMYOE7gKS6GcFvjmEeMBg-Rk1-pacxmZUIIchmTv8aznH_saXiKhySmwDQSiEFZWuf51k_ZfiDOE5NX8fZ-1SofTEKwnPx7oeFfVopt158lgaRAVwQv71NVxm7DoygdFU9AR2a0RR0VHRnN_e4/w400-h225/CoTW1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1YxhIHDBpX66gmVT4MyFFlUKk3WN2Nizn7fA8sQZPc6fr_1cwA88bD60HdX00NwS4c1q3hadLts_qLnk4DESf1uoCzGHayiSfrZ7LY9KK9H4rhiR4iRzJLrXjfUKjBjkF8wlr4QfIn9znmVhfq7Z9kXMT58NZbZXe1XIb_sDWYUK0b3jGwzJPXaoAe6g/s1500/CoTW3.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="844" data-original-width="1500" height="225" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg1YxhIHDBpX66gmVT4MyFFlUKk3WN2Nizn7fA8sQZPc6fr_1cwA88bD60HdX00NwS4c1q3hadLts_qLnk4DESf1uoCzGHayiSfrZ7LY9KK9H4rhiR4iRzJLrXjfUKjBjkF8wlr4QfIn9znmVhfq7Z9kXMT58NZbZXe1XIb_sDWYUK0b3jGwzJPXaoAe6g/w400-h225/CoTW3.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEla6GlBQK1vCtbyAliAScMH2a9X5ydHxoGEHTZ5GsTBEtFLArL0a2DlqP-VUU8x1p-ghlmCicyVvt7H00HLIdhpKy3pHVBC_q0S-DdDtus4fYPEIhAK1h7-BoRvEkXbjn-miFVasRKXHp6FVbyrZ68JIQrBMiyw9azEpI-Fi2RKlQX2rMXr56SEQsCY4/s1500/CoTW4.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="844" data-original-width="1500" height="225" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEla6GlBQK1vCtbyAliAScMH2a9X5ydHxoGEHTZ5GsTBEtFLArL0a2DlqP-VUU8x1p-ghlmCicyVvt7H00HLIdhpKy3pHVBC_q0S-DdDtus4fYPEIhAK1h7-BoRvEkXbjn-miFVasRKXHp6FVbyrZ68JIQrBMiyw9azEpI-Fi2RKlQX2rMXr56SEQsCY4/w400-h225/CoTW4.jpg" width="400" /></a></div><div class="separator" style="clear: both; text-align: left;">Some were still moving!</div><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dx9bMcA30TffgBSZkFsyPLfYxB9nR6udNR0ZF4NCcSNuHEoa7ZFdgJsBeCgUv5Qf_gbj9jLSAJQ3aHWAdugxA' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br /><div class="separator" style="clear: both; text-align: left;"><iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxGwOQJqg91u50RbGpNjIBCRc9bRXrsk5GEwsg8lQdVT4l5TZ0tfyjteXphorZ2IW_qcR2djfc-o72xi4jGJQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div><br />ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com6tag:blogger.com,1999:blog-629132641307534690.post-60243344390034826072023-11-14T16:49:00.001-06:002023-11-18T16:52:52.392-06:00Answer to Case 731<p>Answer to the <a href="https://parasitewonders.blogspot.com/2023/11/case-of-week-731.html" target="_blank">Parasite Case of the Week 731</a>: <i>Echinococcus </i>sp. protoscolex. Hopefully you all got to look at it moving! Given that this is a single liver cyst, it would fit with <i>E. granulosus</i>. Correlation with radiologic and epidemiologic features would be helpful for confirmation.</p><p>Here are some of the key diagnostic features:</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjca3n5IbjonkXq3pUK5sBrT8HCa_tslY1sLhNoDAp9OnLDqjPqZzB_ys9xOvWEWqcDauxftNM4nXCDLjjJNRyh4HFGMp2Ec7HuncYSPLgJ8hFi0N0RVCOqn9OM20I3z0ZZGCG74Cz6iUpqyjYoVrk8-_p3L3lsES1X7vY96OiPMdN7iwJd0HgM3ZCizUs/s1500/CoTW_answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="844" data-original-width="1500" height="225" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjca3n5IbjonkXq3pUK5sBrT8HCa_tslY1sLhNoDAp9OnLDqjPqZzB_ys9xOvWEWqcDauxftNM4nXCDLjjJNRyh4HFGMp2Ec7HuncYSPLgJ8hFi0N0RVCOqn9OM20I3z0ZZGCG74Cz6iUpqyjYoVrk8-_p3L3lsES1X7vY96OiPMdN7iwJd0HgM3ZCizUs/w400-h225/CoTW_answer.jpg" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-51629599920601848482023-11-09T09:47:00.001-06:002023-11-09T09:47:11.320-06:00Case of the Week 730<p> This week's case is generously donated by Idzi Potters and the <a href="https://www.itg.be/en" target="_blank">Institute of Tropical Medicine, Antwerp</a>.</p><p>The following were seen in used contact lens solution from a young woman with complaints of eye pain and blurry vision. The first two images are taken with light microscopy, and the third with phase-contrast microscopy. What is your diagnosis? Please describe the forms you are seeing.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNfCJVdvWI8lj1NBVGCvYzRZVR1dFwxpakfEqhF2LQeQvsjKMXGQVJqjowwRUQ27lC9M1b65O5Y7dZmSrCRGPI4B7a1DQsdeKFpeqQEFLwLANPntL3bs0b00SQHFDF55uHcWU11nGUxDFTvZXCkledUfGWKjfAD-x98xoAbDD6QcRs97-9R0KvLInWaFM/s1161/bar1.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="755" data-original-width="1161" height="260" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjNfCJVdvWI8lj1NBVGCvYzRZVR1dFwxpakfEqhF2LQeQvsjKMXGQVJqjowwRUQ27lC9M1b65O5Y7dZmSrCRGPI4B7a1DQsdeKFpeqQEFLwLANPntL3bs0b00SQHFDF55uHcWU11nGUxDFTvZXCkledUfGWKjfAD-x98xoAbDD6QcRs97-9R0KvLInWaFM/w400-h260/bar1.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglnwyqs1wc6eIGJO8UTugaf01UNOvYdBO9Ic6yPpbk1c1fYtYb9baa5Om3JocW3G8hQPn2GNC-wdXVdShf0sKQ0BMI0DcjlmCLxdQvjPhiH8I3iqFk2_QwCeLQz7Du4MUSXC4GhgLkAzBkKMB536lPGk7SLqRwRPyFcT0vUV_J767qDAivlwUP35GOnLg/s1152/bar2.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="825" data-original-width="1152" height="286" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglnwyqs1wc6eIGJO8UTugaf01UNOvYdBO9Ic6yPpbk1c1fYtYb9baa5Om3JocW3G8hQPn2GNC-wdXVdShf0sKQ0BMI0DcjlmCLxdQvjPhiH8I3iqFk2_QwCeLQz7Du4MUSXC4GhgLkAzBkKMB536lPGk7SLqRwRPyFcT0vUV_J767qDAivlwUP35GOnLg/w400-h286/bar2.jpg" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhq-VI7RVSxFgCXjI5JScG2eVemg6Gr7sw9yc8pTKieoeXeHwOLdW9JR_FYTMowBA6ZMQR1LQYt3UjQoGEqi91TfBfw4oYbL92L_qyPLu9L69negFKRzulNz4aVm6rBi-QU2S5cWJj9k6-8Me-EByOW9xt_tgEetJVegVRP-9k1uf3mttjJGx4PKd5TXec/s1189/bar3.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="799" data-original-width="1189" height="269" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhq-VI7RVSxFgCXjI5JScG2eVemg6Gr7sw9yc8pTKieoeXeHwOLdW9JR_FYTMowBA6ZMQR1LQYt3UjQoGEqi91TfBfw4oYbL92L_qyPLu9L69negFKRzulNz4aVm6rBi-QU2S5cWJj9k6-8Me-EByOW9xt_tgEetJVegVRP-9k1uf3mttjJGx4PKd5TXec/w400-h269/bar3.jpg" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com4tag:blogger.com,1999:blog-629132641307534690.post-71535567478078137192023-11-08T18:10:00.001-06:002023-11-11T18:54:19.140-06:00Answer to Case 730<p> Answer to <a href="https://parasitewonders.blogspot.com/search?q=504" target="_blank">the Parasite Case of the Week 730</a>: <i>Acanthamoeba </i>keratitis.</p><p>As noted by Anonymous, the pictures are a perfect rendition of the โthornyโ <i>Acanthamoeba </i>trophozoite and its polygonal cyst (acanth is New Latin, from Greek akanthos, from akantha <b>thorn, spine</b>). Cysts have 2 layers: a wrinkled outer layer (ectocyst) and inner layer (endocyst) that can be polygonal, spherical, hexagonal, or star-shaped.</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBeZMwhxO3Bb37vnsX26_lUyKIz1pum0lZmEJwYSWZo0cqiaaEYyNLmMOf0QDUeytfJYmg0XpLTCFkImRPUWmy7iA450OSNUFcvxnKpB5K-5567ov3IZOjT1vXPMqkLbxY_i2qhSNsoI2TDXzLkVTKIP1XZ0P30rLn7byoNkQJTazxUZtnTbPurAdGhms/s1161/CoTW%20answer%202.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="755" data-original-width="1161" height="260" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBeZMwhxO3Bb37vnsX26_lUyKIz1pum0lZmEJwYSWZo0cqiaaEYyNLmMOf0QDUeytfJYmg0XpLTCFkImRPUWmy7iA450OSNUFcvxnKpB5K-5567ov3IZOjT1vXPMqkLbxY_i2qhSNsoI2TDXzLkVTKIP1XZ0P30rLn7byoNkQJTazxUZtnTbPurAdGhms/w400-h260/CoTW%20answer%202.jpg" width="400" /></a></div><p>Dr. Satishkumar Krishnam further described the trophozoite as "characterized by spine like pseudopodia (acanthopodia)." Chuck Blend noted that it looks like the first few seconds of a new proto-universe forming!</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpBLue81oCAw9GMuw9z8Rtd8G0JGZRbc9h9CWVrglxO7xvb5MMdecM1jOkCNBsVA5IlxX7kKus8FScU_RzBfQbi-vVFGhBS-xWP__A_EyEzEEPWIMi3HP95bMItecBr6WKdDIgUcq3qWb_75g-nhTKU63YSTIbkVx9Ks7rQl9bQzadno7gJkS0gibcbTU/s1189/CoTW%20answer.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="799" data-original-width="1189" height="269" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpBLue81oCAw9GMuw9z8Rtd8G0JGZRbc9h9CWVrglxO7xvb5MMdecM1jOkCNBsVA5IlxX7kKus8FScU_RzBfQbi-vVFGhBS-xWP__A_EyEzEEPWIMi3HP95bMItecBr6WKdDIgUcq3qWb_75g-nhTKU63YSTIbkVx9Ks7rQl9bQzadno7gJkS0gibcbTU/w400-h269/CoTW%20answer.jpg" width="400" /></a></div>Thanks again to Idzi for this great case!<br /><p><br /></p><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com0tag:blogger.com,1999:blog-629132641307534690.post-81927691578453727812023-11-02T16:02:00.004-05:002023-11-02T16:02:42.098-05:00Case of the Week 729<p>This week's case was generously donated by Drs. Jacob Rattin, Anisha Misra, and Hannah Wang, and originally identified by Marissa Roberts. The following objects were seen on a trichrome-stained stool specimen and measure approximately 15 micrometers in length. What is your identification?</p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgl94aHkxzJpwQlYu-jll-o-BVjF5IyKwc8UVyWMCb_uTME0I_kJZ-AhTmHzL1Bg9cb-yzGb8HbU54TP86YuZ0niMYLGQbZxPet9OdOQu6FnP_jA0ZSbakaARzWbGSgIjvh5OD4RovPlE4FXrQv8dDbVNABUN36vKJIgcqeidiIRMteHTBnWjxtffVzP4I/s1100/Picture1.tif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="655" data-original-width="1100" height="239" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgl94aHkxzJpwQlYu-jll-o-BVjF5IyKwc8UVyWMCb_uTME0I_kJZ-AhTmHzL1Bg9cb-yzGb8HbU54TP86YuZ0niMYLGQbZxPet9OdOQu6FnP_jA0ZSbakaARzWbGSgIjvh5OD4RovPlE4FXrQv8dDbVNABUN36vKJIgcqeidiIRMteHTBnWjxtffVzP4I/w400-h239/Picture1.tif" width="400" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh6g65Z2XB9pKtPm0ZaZ157XNsskhE0PckmrpHWxBvAfg45dfqjPibwZLSWrR0JUL6ME_3nv7abz4JZ_nOEI1aYvwluJJO_g6TFY2RMXAJHYrMuMFTvY2C2snS09wgl1MYCEmOziddGLTo7b1Y-NAaEAmpHFB5G9-E8W92tBmLXS1vJVLKyPjDv7vPsoE/s1100/Picture2.tif" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" data-original-height="649" data-original-width="1100" height="236" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh6g65Z2XB9pKtPm0ZaZ157XNsskhE0PckmrpHWxBvAfg45dfqjPibwZLSWrR0JUL6ME_3nv7abz4JZ_nOEI1aYvwluJJO_g6TFY2RMXAJHYrMuMFTvY2C2snS09wgl1MYCEmOziddGLTo7b1Y-NAaEAmpHFB5G9-E8W92tBmLXS1vJVLKyPjDv7vPsoE/w400-h236/Picture2.tif" width="400" /></a></div><br /><p><br /></p>ParasiteGalhttp://www.blogger.com/profile/09093150363550239544noreply@blogger.com3