Health / Medical Topics |
Giant Congenital Nevus
A rare melanocytic lesion occurring at birth, comprising at least 5% of the body surface area. It usually presents as a dark brown to black hairy lesion. Morphologically, it is characterized by the presence of a compound or intradermal nevus. There is an increased risk of malignant transformation to melanoma, rhabdomyosarcoma, and poorly differentiated malignant tumors. (NCI Thesaurus)
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