Monarch Disease Ontology id MONDO_0021496 (benign neoplasm of lip) is a benign neoplasm that involves the lip. Also known as: benign Lip neoplasm, benign Lip tumor, benign Lip tumour, benign neoplasm of the Lip, benign tumor of Lip, benign tumor of the Lip, benign tumour of Lip, benign tumour of the Lip.