Inflammatory Bowel Disease USMLE Step 1 Practice Question
A 3-year-old boy presents with painless maroon-colored rectal bleeding and abdominal pain. Vital signs show BP 95/60, HR 102/min, RR 22/min, temperature 37.2°C, and SpO2 98% on room air. Hemoglobin is 9.2 g/dL. Physical examination reveals no abdominal distension or tenderness. Technetium-99m pertechnetate scan demonstrates ectopic gastric mucosa in the distal ileum with focal uptake. Which of the following is the most likely diagnosis?
Answer choices
- AIntussusception
- BJuvenile polyp
- CMeckel diverticulumCorrect answer
- DHirschsprung disease
- EUlcerative colitis
- FInflammatory bowel disease (Crohn disease)
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