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?
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
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.
Ascaris
ReplyDeleteLikely possibility of Anisakis or Ascaris. Could be Trichuris as well. Showing eosinophilic inflammation
ReplyDeleteThe Y-shaped lateral chords tell me that this is patient has eaten raw (or undercooked) fish! 😉
ReplyDeleteThe 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.
ReplyDeleteFlorida Fan
Anisakis
ReplyDeletecan Anisakids cause intussusception?
ReplyDeleteI 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.
ReplyDeleteA nematode
ReplyDeleteThis comment has been removed by a blog administrator.
ReplyDelete