2 Days Of Progressively in Medicine / Internal Medicine — 42yo Man | Dermatology | SMLE Q#18595
SMLE Question #18595
Medicine / Internal Medicine
Dermatology
Last updated: February 2026
A 42-year-old man presents with 2 days of progressively worsening pain, warmth, and erythematous swelling over the right thigh. The erythema is diffuse with ill-defined margins and mild edema, with a linear proximal red streak toward the groin. He reports tenderness in the right groin. He denies trauma, recent surgery, fever, or rigors. Examination shows no crepitus, no skin necrosis, and pain is not out of proportion to findings. What is the most likely diagnosis?
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