Both familial and sporadic pituitary adenomas have been found to be caused by germline mutation in the CDH23 gene. Familial pituitary adenoma types include growth hormone (GH)-secreting and nonfunctional tumors. Sporadic pituitary adenoma types include GH-secreting, nonfunctional, prolactin (PRL)-secreting, adrenocorticotropin (ACTH)-secreting, thyroid-stimulating hormone (TSH)-secreting, and plurihormonal (GH and TSH) tumors.
For a general description and a discussion of genetic heterogeneity of pituitary adenomas, see PITA1 (102200). [from
OMIM]