The term "epidermal nevus syndrome" (ENS) is used for any of the various clinical entities which are distinctive in terms of their signs and symptoms, histopathology, and genetic composition. In most ...

Nevus sebaceus of Jadassohn (NSJ) is a benign, congenital hamartoma that often presents at birth, appears to regress in childhood, and grows during puberty, suggesting possible hormonal control. We ...