Abstract
Thirty-six cases of adrenal tumor experienced at the department were classified into hormone producing adrenal tumor (HPAT) group (27 cases) and hormone nonproducingadrenal tumor (HNPAT) group (9 cases), and comparatively studied.
Most cases of HPAT group manifested characteristic symptoms, and 7 of the 9 cases of HNPAT group were incidentally detected by abdominal CT. Localization of these tumors were diagnosed by CT, US, MRI and scintigraphy. The correct diagnosis rates for primary aldosteronism were as low as 50-60% except scintigraphy, and the rates detecting tumors with a diameter of less than 2 cm was also low (50-60%). All cases of HPAT were operated on and retroperitoneal approach was taken in most cases of primary aldosteronism and Cushing syndrome while transperitoneal approach for pheochromocytoma.
Postoperative course was unevetful in all cases. Seven of 9 cases of HNPAT group were operated on, however, some of them appeared not to be necessitate operation, in which only follow-up by some radiographic imagings would be appropriate.
