A hormone producing pituitary gland tumor, associated with a hormonal syndrome. The disease is MONDO_0003604 (functioning pituitary gland neoplasm). Also known as: functioning endocrine neoplasm of pituitary gland, functioning pituitary neoplasm, hormone producing pituitary neoplasm, pituitary gland functioning endocrine neoplasm, pituitary neoplasms, hormone producing, pituitary tumors, hormone producing.