benign neoplasm of oral cavity (Monarch Disease Ontology identifier MONDO_0021445) is a benign neoplasm that involves the oral cavity. Also known as: benign mouth neoplasm, benign mouth tumor, benign mouth tumour, benign neoplasm of mouth, benign neoplasm of the mouth, benign neoplasm of the oral cavity, benign oral cavity neoplasm, benign oral cavity tumor.