What are these structures?
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A parasitologist's view of the world
Welcome to Parasite Case of the Week
Every week I will post a new Case, along with the answer to the previous case. Please feel free to write in with your answers, comments, and questions. Also check out my image archive website at http://parasitewonders.com. Enjoy!
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
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11 comments:
Entorobius vermicularis?... Colorless Egg, oval, slightly flattened on one side.
I was thinking the same thing, but aren't pin worm eggs usually found externally attached near the anus (found with scotch tape test and not a stool sample).
Yep, Enterobius/pinworm. They are found on the skin around the anus but can also be seen in stools.
Enterobius vermicularis it is!
These little buggers can be found in stool, although the best method of recovery is by pinworm paddle (scotch tape preparation). Having said that, I haven't had a request for a pinworm prep in ages. Seems they are falling out of fashion? Has anyone had the same experience at their facility?
Sweetie,
Pinworms certainly are still around. Definitely the best recovery and at times most striking is the anal/perianal impressions since we can see adult worms as well as ova, but they can be found in stool concentrates as well.
We do have a large number of retirement facilities in Florida. In the old days, the retirees are "de-wormed" (sounds a bit dis-respectfull) given anti-helminths on a periodic basis to prevent pinworm infections from spreading in these facilitites. These days, this approach has been suspended, the patient can only be treated when clinically diagnosed.
Economical and sound approach, yet we receive a dozen or so samples at times from these institutions and about one third of them will contain the pinworm.
Little children still get pinworm infection. These children are generally generous, sharing their food to friends or class mates and their pinworm as well.
Florida Fan
Last pinworm infestation I treated in Massachusetts came from a Mexican-American retiree around 2013, who returned to Mexico City frequently to visit family for months at a time. On one return trip with the children and grandchildren, the grandparent returned with itching anus and visible pinworms. Easily treated.
enterobius vermicularis
Enterobius vermicularis
Enterobius egg. Indeed a rare find in a stool sample.
They look really different here than from a scotch tape (Graham test), can't see the larva inside.
In these cases, sometimes, you can spot adult female worms in the stool whem processing.
-HLCM Fan
Looks like pinworm
This is ova of Enterobius vermicularis
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