Benign neonatal hemangiomatosis: review and description of a patient with unusually persistent lesions.

Benign neonatal hemangiomatosis (BNH) is a disorder in which multiple cutaneous hemangiomas appear at birth or shortly thereafter; visceral complications are absent. While previously reported cases of BNH emphasize the relatively early spontaneous regression of the cutaneous lesions, we describe a patient in whom new lesions arose and old ones persisted during the first year of life. The features of BNH are contrasted with those of diffuse neonatal hemangiomatosis (DNH), a dermatosis with a more grave prognosis.