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free120/Block 1/Question#14 (12.9 difficulty score)
A 14-year-old girl has had nausea, ...
Microscopic examination of the stool🔍
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benwhite_dotcom  As an addendum, I believe this is larva currens (https://en.wikipedia.org/wiki/Larva_currens) in the setting of strongyloides infection and not Cutaneous larva migrans. Strongyloides, unlike CLM, explains the diarrhea, weight loss, and not just the eosinophilia. CLM is generally limited to the skin and typically appears first in hands or feet (whatever touches soil) with perianal involvement being significantly less common. Stool studies are unnecessary in CLM, which is primarily a clinical diagnosis. The other information in the stem is there for a reason. See this nice comparison page: https://www.derm101.com/therapeutic/cutaneous-larva-migrans-larva-currens/introduction/ +2  



Larva currens (Latin for racing larva) is an itchy, cutaneous condition caused by infections with Strongyloides stercoralis. It is caused by the intradermal migration of strongyloides and distinguished from cutaneous larva migrans (caused by hookworms Ancylostoma and Necator) by its rapid migration, perianal involvement and wide band of urticaria.