Dermatopathology

Photo Challenge

Retiform Purpura on the Legs

A 70-year-old woman with a medical history of Takayasu arteritis, end-stage renal disease on peritoneal dialysis, coronary artery disease,...

MD IQ

Photo Challenge

Violaceous Nodules on the Lower Leg

A 79-year-old man presented to the dermatology clinic with 4 enlarging, asymptomatic, violaceous, desquamating nodules on the left pretibial...

Dermpath Diagnosis

Ulcerating Nodule on the Foot

A 59-year-old woman with a history of joint pain presented with a foot nodule that developed over the course of 2 years. Incisional biopsy was...

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