The surgical treatment of 132 acromegalics is analyzed. There was an equal sex distribution among patients between the ages of 30 and 59. In the younger patients there was a preponderance of males, and the opposite situation occurred in patients older than 59 years. The overall cure rates were 58% (growth hormone (GH) < 5 ng/ml) and 78% (GH < 10 ng/ml). Endocrinological evidence of cure was observed most commonly in patients who exhibited preoperative GH values below 70 ng/ml.