Papillary eccrine adenoma associated with syringocystadenoma papilliferum

Abstract

Sir, Papillary eccrine adenoma, first described by Rulon and Helwig in 1977, is an uncommon, longstanding, benign tumor of sweat glands, usually located on the extremities of darker skin individuals, especially females. [4] Tubular apocrine adenoma usually presents on the scalp as superficial dermal nodule and shares the histological features of papillary eccrine adenoma, except that the latter has a peripheral myoepithelial cell layer. [4],[5] Histologically, it shows both nodular solid and cystic granular pattern of cuboidal or low-columnar epithelial cells, with back-to-back arrangement or cribriform pattern of glands.