a retrospective study of secondary diabetes prevalence in pheochromocytoma, cushing and acromegal patients

some of the endocrinologic diseases, especially acromegaly, cushing and pheochromocytoma have multiple effects on blood glucose metabolism and regulation in non-diabetic patients. in this retrospective survey, records of patients of tehran medical sciences university hospitals have been reviewd. of 124 acromegals, gtt was performed for 51 patients, being impaired in 18%. to evaluate diabetes, fbs and bs of 90 patients were checked, overt diabetes was detected in 27%. among 90 cushing patients, blood glucose was checked in 60 cases, 47% of these patients had levels above the normal range, and 39% had glucosuria. among 80 pheochromocytoma patients, 16 cases (26.5%) had overt diabetes. in comparison with other studied, we have obtained a little different results concerning diabetes and impaired gtt prevalence