Monday, April 6, 2026

Case of the Week 805

This week's case was generously donated by Dr. Karra Jones, and features H&E histopathologic sections of intestine from patient with intussusception. Upon close examination, the culprit behind the intussusception can be seen:

What is your diagnosis?

2 comments:

Anonymous said...

Anisakis/Pseudoterranova?
I'm not good with histology...

-HLCM

Anonymous said...

You’re not alone, histology is termed by my former lab director “that’s where I suck” and so am I. Given the most usual nematode of man, I suspect Ascaris suishominis. I see a cuticle, a thin hypodermis, a thick layer of tall muscle cells a central intestine with very tall absorbing cells and an excretory duct. On the outer lower part, there seems to be a pointed alae. That’s what I believe seeing.
Florida Fan