Endoscopic transsphenoidal pituitary surgery: pituitary microadenoma: 3-dimensional operative video.

This video demonstrates an endoscopic transsphenoidal resection of an corticotropin-secreting pituitary microadenoma. The patient is a 62-year-old man who was found to have a 5-mm pituitary adenoma after he exhibited signs and symptoms of Cushing disease. His endocrine laboratory studies confirmed central hypercortisolism.This video highlights dissection of the adenomapseudocapsule from the remainder of the pituitary gland for tumor removal. A gross total resection was achieved, and his postoperative cortisol levels were consistent with a biochemical cure of his Cushing disease. Figures and captions for relevant anatomy during tumor resection are depicted at the end of the video.