Monarch Disease Ontology term MONDO_0021490 (benign neoplasm of sebaceous gland) is a benign neoplasm that involves the sebaceous gland. Also known as: benign neoplasm of the sebaceous gland, benign sebaceous gland neoplasm, benign sebaceous gland tumor, benign sebaceous gland tumour, benign sebaceous neoplasm, benign sebaceous skin neoplasm, benign sebaceous skin tumor, benign sebaceous skin tumour.