The marks on the skin in some phacomatoses.
D000798:Angiomatosis; D006801:Humans; D020752:Neurocutaneous Syndromes; D017253:Neurofibromatoses; D009456:Neurofibromatosis 1; D012867:Skin
ANGIOMATOSIS/manifestations; NEUROFIBROMATOSIS/manifestations; SKIN