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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f38_33_39442

©2013 UpToDate ® Print Email Perianal fistulas in Crohn's disease T2-weighted axial magnetic resonance imaging (MRI) study showing perianal fistulas (arrows) in a patient with Crohn's disease. Courtesy of Jonathan Kruskal, MD.