Monarch Disease Ontology term MONDO_0021244 (submandibular gland neoplasm) is a neoplasm (disease) that involves the submandibular gland. Also known as: neoplasm of submandibular gland, neoplasm of the submandibular gland, submandibular gland neoplasm (disease), submandibular gland tumor, submandibular gland tumour, tumor of submandibular gland, tumor of the submandibular gland, tumour of submandibular gland.