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NBME 20 Answers

nbme20/Block 1/Question#27

A 53-year-old woman comes to the physician because ...

Schistosoma mansoni

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submitted by monoloco(75),

When you have a traveler who has intermittent abdominal symptoms and diarrhea, and who has traveled to the likes of northern Africa and such, Schistosomiasis needs to be on your radar. At least, that’s how I’ve incorporated this nugget into my mental space.

It also looked exactly like schistosome on the slide--it had the little spine. Entamoeba would have had a bunch of RBCs inside.

Schistosoma has spines whereas Giardia doesnt have a spine