NBME 20 Schistosoma mansoni (NBME Answers)

NBME 20 Answers ↦

nbme20/Block 1/Question#27 (24.5 difficulty score)
A 53-year-old woman comes to the physician ...
Schistosoma mansoni 🔍,📺
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+7
submitted by monoloco(136),

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+4
submitted by strugglebus(165),

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It salo deookl alectxy eikl ocemoshsits on eth -tsd-liei ahd teh eilttl ips.en Enbtamoea woudl ahve had a uhncb of sRBC sdiine.

+3
submitted by hellohello(8),

Schistosoma mansoni and haematobium can be ID'd by their unique spines. S. mansoni has a lateral spine as seen on the path while S. haematobium has a terminal spine (S. japonicum has no spine).

See following for path comparisons (mansoni L, haematobium M, japonicum R)

https://www.yourgenome.org/sites/default/files/images/photos/Schistosome%20eggs.jpg

fatboyslim Schistosoma haemaTobium: spine is on the Tip ("T" for Tip and haemaTobium) and Schistosoma manSoni has a spine on the Side ("S" for manSoni and Side) +3

kevin nice +

thegooddoctor Excellent explanation! +3

utap2001 Very brilliant! +

+2
submitted by usmleaspirant5(2),

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itomhcsasoS ash ipnsse wearshe Graiiad tdonse have a peisn