Infectious Diseases

MD IQ

Photo Challenge

Nonscaly Red-Brown Macules on the Feet and Ankles

A 59-year-old man presented with a nontender nonpruritic rash on the feet of 2 days’ duration. The patient had a several-year history of...

Dermpath Diagnosis

Acute Tender Papules on the Arms and Legs

A 66-year-old man presented with new tender erythematous papules scattered over the arms and legs. A biopsy of a lesion on the left thigh was...

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