Inflammatory Bowel Disease USMLE Step 1 Practice Question
A 73-year-old man with diffuse atherosclerosis and hypertension controlled with lisinopril develops sudden crampy left-sided abdominal pain and hematochezia hours after severe hypotension (BP 70/40) during sepsis. Vital signs now show BP 105/65, HR 102, RR 18, temp 38.2°C. Colonoscopy reveals pale mucosa with petechial bleeding at the splenic flexure. CT imaging demonstrates segmental colonic wall thickening without pneumatosis. No prior inflammatory bowel disease history exists. Which diagnosis is most likely?
Answer choices
- ADiverticulitis
- BAngiodysplasia
- CIschemic colitisCorrect answer
- DUlcerative colitis
- ECrohn disease
- FInfectious colitis due to Clostridioides difficile
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