Term Name:	large congenital melanocytic nevus
Synonyms:	Congenital pigmented nevus, Giant congenital melanocytic nevus, Giant pigmented hairy nevus, GMN, LCMN
Definition:	A skin disease characterized by the presence at birth of a pigmented skin lesion composed of melanocytes of more than 20 cm in projected adult diameter that has_material_basis_in somatic mutation in the NRAS gene on chromosome 11p15.5.
Ontology:	Human Disease [DOID:0111359]   ( DOID:0111359 )