abnormal neural crest cell proliferation increased neural crest cell proliferation MPheno.ontology MP:0012742 enhanced ability of the transient and migratory group of cells that emerge from the dorsal region of the neural tube and migrate to many peripheral locations to form various tissues of the adult to undergo rapid expansion by cell division csmith 2014-03-27T14:22:23Z enhanced neural crest cell proliferation increased NCC proliferation enhanced NCC proliferation