disease arises from structure disease arises from alteration in structure basal cell benign neoplasm basal cell neoplasm benign basal cell neoplasm UMLS:C0474802 benign basal cell tumour MONDO:0020805 benign basal cell tumor NCIT:C4743 A neoplasm composed of basal cells that remains localized and does not metastasize to other anatomic sites. MEDGEN:96885 benign epithelial neoplasm