Pigmentation Disorders

Photo Challenge

Linearly Curved, Blackish Macule on the Wrist

A 66-year-old woman presented with a slowly enlarging, 4×4-mm, linearly curved, blackish macule on the left wrist of 1 year’s duration. Dermoscopy...

Photo Challenge

Exophytic Scalp Tumor

An 81-year-old man presented with a 3.5×3.0-cm pink exophytic tumor with an eroded surface and prominent vascularity on the left side of the...

Pediatric Dermatology

Piebaldism in Children

Piebaldism is a rare autosomal-dominant disorder of melanocyte development characterized by congenital poliosis and stable patches of leukoderma...

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