Dermatopathology

Photo Challenge

Brown Papules on the Penis

A 32-year-old man presented to the outpatient clinic with reddish brown lesions on the penis of 5 months' duration. Dermatologic examination...

Photo Challenge

Agminated Heterogeneous Papules on the Neck

A 19-year-old man presented to the dermatology clinic for evaluation of several new dark papules on the neck of 1 year's duration. He denied any...

MD IQ

Photo Challenge

Solitary Nodule on the Proximal Nail Fold

A 62-year-old man presented for evaluation of a slowly growing, nonpainful nodule on the first proximal toenail fold of the right foot of 6 years...

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