Vascular disorders.
Cutaneous vascular abnormalities are a feature of many syndromes with multisystemic involvement. The most common associations are hypertrophy of underlying soft tissue and bone, as in the Klippel-Trenaunay-Weber and Sturge-Weber syndromes, visceral vascular lesions with hemorrhage, as in hereditary hemorrhagic telangiectasia and blue rubber bleb nevus syndrome, and neurologic alterations, as in Fabry's disease, ataxia-telangiectasia, and the Sturge-Weber syndrome.
D001260:Ataxia Telangiectasia / Q000235:genetics; D002648:Child; D002675:Child, Preschool; D004687:Enchondromatosis / Q000235:genetics; D000795:Fabry Disease / Q000235:genetics; D006801:Humans; D007715:Klippel-Trenaunay-Weber Syndrome / Q000235:genetics; D009508:Nevus, Pigmented / Q000235:genetics; D012878:Skin Neoplasms / Q000235:genetics; D013341:Sturge-Weber Syndrome / Q000235:genetics; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000235:genetics; D014652:Vascular Diseases / Q000151:congenital / Q000235:genetics*