Apparently trichinella lies around in muscle of all of the random exotic animals that most people wouldn't normally eat... things like bear, wild boars/pork (like in Sketchy Micro), big cats, foxes, dogs, horses, seals, walruses. In case you needed another reason to not hunt and consume these animals?
how to rule out the others:
we would see eosinophilia, but obvi this wouldnt tell us which helminth is involved
Trichinella larvae bury themselves inside muscle tissue rather than remain in the intestine as in other roundworm infections, so stool sample tests don't often show evidence of the parasite
gram stain of stool is a pretty nonspecific test used for campylobacter enteritis; this dude doesnt have diarrhea...and lastly, xray of muscle aint gonna tell u a thang lolz
vs. eggs (ova) in stool โ Hookworms*, Ascaris
vs. larvae in stool โ Strongyloides stercoralis
vs. scotch tape test โ E vermicularis
hookworms โ Necator Americanus, Ancylostoma duodenale
(source: sketchy)
https://www.cdc.gov/parasites/trichinellosis/biology.html worth taking a look.
Just adding on- Xray of large muscle groups would help in diagnosis of cysticercosis since cysts are calcified, in trichinella they are not. I think i'm the only one who got this wrong :/
How do you guys know about this? I chose stool O&P...and muscle biopsy is not mentioned anywhere...
SKETCHY trichenlla spiralis pig (can be polar bear too) * round glasses --> perio orbital edema sweating and green vomit round things on walls ==> forms cysts in striated muscle (so for this question makes sense that you do muscle biopsy) fire --> inflammation of muscle eosinophil granules --> non specific as you can see its all over this image so its for many different types of nematodes
submitted by โsattanki(82)
Muscle pain + periorbital edema is a classic presentation for trichonella spiralis. Best diagnosis for this is a muscle biopsy, as the wormy likes to hangout within the muscles.