This week's case was donated by Drs. Michael Mitchell and Theresa Smith. The following structures were seen on a Papanicolaou-stained anal Pap smear who had a history of squamous dysplasia. They measure approximately 55 micrometers long. What is your diagnosis?
9 comments:
Judging from the size, the location of the body, the one flat side of the egg and the presence of a folded larva inside, it is a case of Enterobius vermicularis infection.
Enterobius vermicularis eggs
Based on size, D-shaped, larvated egg and sample collected; it is Entrobius vermicularis egg
Enterobius vermicularis emryonated egg
I'm not an expert in this type of stain but I would guess that it's not a parasite. /Patrik
Definitely a parasite… enterobius
This looks like Enterobius vermicularis egg with larva inside.
I'm a cytotechnologist and was excited when I came across a Pinworm ova on a Pap Smear that I was screening. Always fun to get something out of the ordinary to break the monotony
Uploaded a pic I took of it & asked grok to identify the organism, it incorrectly ID'd it as a Trichomonas. 😜
Thanks for writing, Anon. That's pretty funny that grok called your pinworm ovum a Trichomonas (!!) If you ever want to share pictures of your cases, I'd be happy to feature them on the blog with full credit to you and your team! You can email me at pritt.bobbi@mayo.edu
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