Transsphenoidal microsurgical removal of 250 pituitary adenomas

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✓ In a series of 250 pituitary adenomas, 72 (28.8%) were nonsecreting and 178 (71.2%) produced a hypersecretion syndrome: human growth hormone (83), prolactin (59), and adrenocorticotropic hormone (ACTH) (36). One-fifth had received prior treatment and one-fourth had visual impairment. The technical aspects of the trans-sphenoidal procedure are given with separate consideration of microadenomas and larger tumors. The results are provided in summary form with emphasis on the favorable outcome following removal of microadenomas. There was one postoperative death, and the complications observed after operation are presented.

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