Crohn disease and ulcerative colitis distinguishing features, complications, and extraintestinal manifestations tested on USMLE Step 1.
About this set
34 basic cards for USMLE Step 1 Gastroenterology. Set 4 of 5 in USMLE Gastroenterology. It opens with "Which IBD can affect any part of the GI tract from mouth to anus?" and "Which IBD is characterized by skip lesions (patchy, discontinuous areas of". Study it alongside the other USMLE Step 1 sets below.
34 cards · basic cards · AI-written, checked twice. Edit anything.
- Which IBD can affect any part of the GI tract from mouth to anus?
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Crohn disease- Which IBD is characterized by skip lesions (patchy, discontinuous areas of involvement)?
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Crohn disease- What is the most commonly affected site in Crohn disease?
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Terminal ileum- Crohn disease inflammation extends through which layers of the bowel wall?
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All layers (transmural)- What mucosal appearance, resembling street paving stones, is seen in Crohn disease?
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Cobblestone mucosa- What term describes mesenteric fat wrapping around the bowel wall in Crohn disease?
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Creeping fat- What histologic hallmark, though not always present, is classic for Crohn disease?
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Noncaseating granulomas- What radiographic sign on barium studies reflects a narrowed, strictured bowel segment in Crohn disease?
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String sign- Which IBD is more commonly associated with fistula formation?
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Crohn disease- Which IBD more commonly causes bowel strictures and obstruction?
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Crohn disease- Why can Crohn disease involving the terminal ileum cause vitamin B12 deficiency?
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The terminal ileum is the site of B12 absorption and is damaged or resected in Crohn disease- Which IBD commonly causes perianal disease such as fissures, fistulas, and abscesses?
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Crohn disease- How does smoking affect Crohn disease?
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Smoking increases the risk of and worsens Crohn disease- Crohn disease increases the risk of which type of kidney stone?
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Calcium oxalate stones- Why does Crohn disease increase the risk of calcium oxalate kidney stones?
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Fat malabsorption lets calcium bind fat instead of oxalate, leaving more free oxalate to be absorbed and excreted
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