GH1 and adenoma: In terms of hormone oversecretion, prolactin oversecretion was reported in 62.5%, growth hormone in 8.8%, adrenocorticotrophic hormone (ACTH) in 4.4%, co-secreting (over-secreting more than one hormone) was reported in 9.5% of the adenomas, and 14.7% were non-functioning PitAd.