Imiquimod-induced hypopigmentation following treatment of periungual verruca vulgaris.

Imiquimod is a topical immunomodulating medication approved by the US Food and Drug Administration for the treatment of condyloma acuminata, actinic keratoses (AKs), and superficial basal cell carcinoma (BCC). Imiquimod commonly is used off label for its antiviral and antitumoral effects. We present a case of a 51-year-old man with vitiligolike depigmentation following treatment of periungual verruca vulgaris with imiquimod therapy.