🏥 USMLE Exam Prep

A 30-year-old woman with Crohn's disease complains of painful, red nodules on her shins. She also reports occasional joint pain, especially in her ankles and knees. Her gastrointestinal symptoms are currently well-controlled with medication. Which extraintestinal manifestation is she most likely experiencing?

A Primary sclerosing cholangitis
B Erythema nodosum
C Pyoderma gangrenosum
D Ankylosing spondylitis

✓ Correct Answer: Option B

Erythema nodosum presents as painful, red, subcutaneous nodules typically on the shins and is a common extraintestinal manifestation of inflammatory bowel disease, often associated with arthralgias. It often correlates with active disease but can occur when GI symptoms are controlled.

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