Monday, December 28, 2009

Case of the Week 99

Welcome back Readers to the last case in 2009! I think it is very fitting that this is Case 99, and that Case 100 will be the first case of 2010.

This case is a colon biopsy that contained an unexpected object:
For the non-pathologists, note that what we're seeing is a worm cut in cross-section. Use the internal structures to help you identify it. Another hint: notice that the worm portion shown is external to the intestinal mucosa.



Kathy said...

It looks like a female gravid Trichuris trichiura.

Anonymous said...

Agree; those look like tricuris ova.

Anonymous said...

Based on the eggs' morphology, I will go with hookworm (N. americanus or A. duodenale), although I wonder why the worm is in the colon, not the small bowel. I don't see good alae to suggest pinworm. BW in Vt

Scott said...

T. trichiura...A certain Devo song come to mind!