Port-wine-stain (nevus flammeus), congenital Becker's nevus, café-au-lait-macule and lentigines: phakomatosis pigmentovascularis type Ia--a new combination.

A 16-year-old male had brown macules in a geographic pattern with increased terminal hair on the back and dusky red partially blanchable non progressing macules on his left thigh since birth. Clinical diagnoses of Becker's nevus and port-wine-stain were made and confirmed histopathologically. In addition, he had multiple lentigines on the face and trunk and a single café-au-lait-macule on his chest.