Fractional photothermolysis of residual hemangioma.

Hemangiomas are benign vascular malformations of childhood characterized histologically by endothelial proliferation and clinically by rapidly expanding erythematous nodules. The incidence in newborns is approximately 2% to 3%, making them the most common tumors of infancy. Hemangiomas are typically classified as superficial (cutaneous), deep (subcutaneous), or mixed (cutaneous and subcutaneous) and have a female to male predominance of 3 to 1. 3