Anogenital mammary-like gland adenoma: report of two cases and review of literature

Abstract

Hidradenoma papilliferum also known as papillary hidradenoma is a benign, slow-growing, asymptomatic, adnexal tumor that primarily affects the anogenital area of adult women. The origin of hidradenoma papilliferum was previously thought to be an apocrine sweat gland; recent studies have suggested that it may derive from the anogenital mammarylike gland. It usually presents as slow-growing, asymptomatic flesh-colored nodule in the anogenital area. Its dermoscopic features are poorly reported in the literature. The nodule is composed of tubules and papillary structures arranged in a frond-like pattern. Treatment of hidradenoma papilliferum consists of complete surgical excision. We report the characteristics of two cases of this rare entity.