Case Presentation A 23-year-old man presented to the emergency department with rapidly progressive left arm pain and erythema. Medical History He had felt well until the previous night when his left third finger was injured during a lacrosse game. Overnight, the finger became increasingly painful, with erythema spreading to the wrist, which prompted him to seek medical care. Clinical examination and workup Temperature 36.7°C (98.1°F), Heart rate 64 beats per minute, Blood pressure 139/85 mm Hg.

Presence of a small blister on the left third finger with surrounding warmth, tenderness, erythema, and linear streaking to the elbow. Progressive linear streaking to the axilla. What is the possible diagnosis? Acute lymphangitis Cellulitis Deep vein thrombosis Myositis Superficial thrombophlebitis *This patient case is from Docplexus Editorial Team for an educative purpose only The answers have…