umls-concept:C0346302 | skos:definition | NCI: An adenoma of the anterior lobe of the pituitary gland that produces growth hormone. The vast majority of cases are hormonally functioning and are associated with either gigantism or acromegaly.,MSH: A pituitary tumor that secretes GROWTH HORMONE. In humans, excess HUMAN GROWTH HORMONE leads to ACROMEGALY. | lld:umls |