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ModerateGastroenterologyCrohn diseaseus-abfmus-abimus-usmle-step-2

A 28-year-old woman presents with a 3-month history of nonbloody diarrhea, abdominal pain, and 10-pound weight loss. She has aphthous ulcers in the mouth and perianal skin tags. Colonoscopy shows patchy areas of inflammation with skip lesions and cobblestoning in the terminal ileum and colon. What is the most likely diagnosis?

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