A Case of Becker's Nevus Associated with Ipsilateral Hypoplasia / 대한피부과학회지

Becker's nevus is a cutaneous hamartoma characterized by unilateral hairy hyperpigmentation and can be associated with subjacent and distant soft tissue and bony abnormalities. Ipsilateral breast hypoplasia is a rare abnormality in Becker's nevus, suggesting that increased androgenic receptors or early postzygotic mutation may play a role in the pathogenesis of Becker's nevus. We report a case of Becker's nevus associated with ipsilateral breast hypoplasia in a 24-year-old female.