This week's case was generously donated by Dr. Karra Jones. A patient presented with intestinal intussusception, and the following was seen on histopathologic examination of the resected bowel. What is your diagnosis?
10x objective:
20x objective:
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9 comments:
Ascaris
Likely possibility of Anisakis or Ascaris. Could be Trichuris as well. Showing eosinophilic inflammation
The Y-shaped lateral chords tell me that this is patient has eaten raw (or undercooked) fish! 😉
The cross sections tell us that this is a nematode. From on line publications and Idzi comment, the very tall musculature and Y shaped lateral chords favor a diagnosis of Anisakiasis.
Florida Fan
Anisakis
can Anisakids cause intussusception?
I like for Anisakiasis w/ the 3rd pic showing an abortive granuloma type structure -- even though supposedly non-tissue invasive these worms do get into tissues so can find in the mesentery (and even nodes probably) often without much intact worm structure.
A nematode
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