Idiopathic plasma cell balanitis of Zoon in a 15-year-old boy.

Abstract

We report a 15-year-old boy with lesions mainly involving glans penis and prepuce, which appeared 4 years before. Histopathological study showed representative features of plasma cell balanitis of Zoon confirming this diagnosis. He presented a favorable outcome under topical tacrolimus 0.1%. The occurrence of this entity during childhood is extremely rare.