Isolated collagenoma on the face: a rare occurrence.

Collagenomas are connective tissue nevi with hamartomatous proliferations of dominant dermal collagen. They can present as solitary or multiple inherited or acquired lesions over various body sites. The face is a rare site of collagenomas and, of the few cases reported in the literature, they have been seen more often on the scalp or on the plantar area. An extensive literature search did not reveal any cases of isolated collagenoma on the face. Herein we present the case of 22-year-old female with isolated collagenoma on the face. This case is being reported because of its unique location and rarity.