Becker's nevus syndrome with bilateral skin involvement

Abstract

Becker’s nevus syndrome is a rare disorder characterized by Becker's nevus associated with developmental anomalies, such as hypoplasia of the ipsilateral breast or other cutaneous, muscular, or skeletal defects. We present a rare case of Becker's nevus syndrome with bilateral skin involvement but the associated anomalies, hypoplasia of the whole right upper limb and ipsilateral breast, remained localized to the more severe body side only.