Monday, November 23, 2015

Case of the Week 373

The following structures were found in stool.  They measure approximately 60 micrometers in greatest dimension. Identification?





11 comments:

Anonymous said...

Enterobius vermicularis. wash your hands. No scratching.

infectiologue said...

Agree. Nice hatching shot!

atomico said...

Oxiurus or Enterobius Vermicularis. Nices Images

Anonymous said...

Nice shots of E. vermicularis, especially the hatching one.

Florida Fan

Anonymous said...

E Vermicularis

Arthur Morris said...

Certainly pinworm; Enterobius vermicularis. Someone mentioned Oxyuris, which is a genus most commonly associated with the horse pinworm (Oxyuris equi) and the rabbit pinworm (Oxyuris/Passalurus ambigua) however I am not aware that genus Oxyuris is of a public health threat to humans. Does anyone have any contradictory information?

Anonymous said...

Pinworm, Enterobious vermicularis - Nice Photos!

Lee

Anonymous said...

Arthur:
Back in the days I was a med tech student in the late sixties, I have been taught the name Oxyuris vermicularis as a synonym of Enterobius vermicularis. Perhaps at that time the word Oxyuris was used because there was still a strong French influence in the former French Indochina (in French "oxyure" means pinworm).
And even then, when we did our rotation at the Walter Reed Laboratory branch in Saigon, the American technologists used only the name Enterobius vermicularis.
You did bring up very interesting facts.

Florida Fan

Arthur Morris said...

Florida Fan: Many thanks for sharing your expertise on the subject, I had no idea of the French etymology of the name. Very interesting indeed!

Much of the reason I value this blog is for the invaluable discourse I enjoy every week!

Bobbi Pritt said...

I agree with Arthur - one of the reasons I keep up my weekly blog posts is because of my amazing community of readers! You all inspire me to keep learning and be a better parasitologist. Happy Thanksgiving to my colleagues in the United States.
Bobbi (a.k.a. Parasite Gal)

Anonymous said...

How in the world do you catch a hatching enterobius egg - unbelievable and something I'd never think to look for so great case. Happy Thanksgiving and I'll try to not think of parasites that turkeys can have....