The American Society of Dermatopathology

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Interactive Case Study - June 2015

A verrucous plaque on the wrist

Hye Jin Chung, MD, MMS; Lynne J. Goldberg, MD

Question 1:

A 71-year-old man with history of multiple actinic keratoses presented with a 1.2 cm asymptomatic erythematous plaque on his left dorsal wrist. The clinical impression was non-melanoma skin cancer, and a broad shave biopsy was performed.

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Which of the following is the best diagnosis?