Multiple secreting microadenomas as a possible cause of selective transsphenoidal adenomectomy failure. Case report.

Approximately 10% to 20% of patients who undergo selective transsphenoidal removal of secreting microadenomas fail to achieve a cure. One of the possible causes of these failures is multiple adenomas. A case history is presented of two microadenomas within the same gland, and the multiplicity of pituitary adenomas is discussed.