has part has part has_part occurs in occurs in characteristic of part of has modifier migratory neural crest cell cell population proliferation abnormal cell proliferation abnormal neural crest cell proliferation any anomaly in the 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 abnormal NCC proliferation MPheno.ontology MP:0009842 abnormal neural crest cell physiology quality abnormal