Creepy Dreadful Wonderful Parasites

Answer: Histoplasma capsulatum This small oval-shaped fungus has a very similar appearance to the amastigotes of Leishmania species (and Tr...

This week's case is courtesy of Dr. Delgado and the Yale Pathology department. The patient is young adult male with extensive travel thr...

Answer: Visceral leishmaniasis due to  Leishmania species ( Leishmania donovani complex or L. tropica ). As noted by Brady Page, Anon, Flori...

This week's case is generously donated by Florida Fan. The following object was submitted to the laboratory for identification. It had b...

Answer: Female  Trichuris sp. The most likely etiology is T. trichiura . However, as several readers mentioned, human infection with T. vul...

Happy Unicorn Day! (yes, there really is such a thing). This was seen in a trichrome-stained stool specimen. It measures approximately 19 m...

Answer: Entamoeba coli or 'uniamoeba'! While this case shows a beautiful trophozoite 'unicorn' for national unicorn day, it...

Happy April! It's time for our first case of the month by Idzi Potters and the Institute of Tropical Medicine, Antwerp . The patient i...

Answer: Taenia sp. Molecular testing showed this to be Taenia saginata. There was a lot of great discussion regarding the differential on...

This week's case just came through my lab. The video and photos are courtesy of my excellent technical specialist, Heather Rose. Identif...