ABSTRACT
Objective:To investigate the clinical characteristics of adrenal incidentaloma and explore the management strategies for this disease. Methods:The clinical data of adrenal neoplasm patients admitted in The First Affiliated Hospital and Cancer Center of Sun Yat-sen University from January 2001 to January 2013 were analyzed retrospectively. Results:The data of 667 patients with adre-nal incidentaloma were analyzed. Adenoma was the most common tumor in 511 cases with pathological results (240/511, 47%). Fur-thermore, the pathologic results indicated that 18%(90/511) of these cases were pheochromocytoma and 8%(41/511) were adreno-cortical carcinoma. Of the 511 cases, 266 had≤4 cm tumors, and 245 had>6 cm tumors. In cases with≤4 cm tumors, 260 (98%) had benign tumors, and 183 of these cases underwent laparoscopic adrenalectomy. In cases with>6 cm tumor, 91 cases (37%) had malig-nant tumors, and 162 of these cases underwent open adrenalectomy. Conclusion:The suggested cut-off size for adrenal incidentalo-ma diagnosis is 4 cm. Laparoscopic adrenalectomy is the recommended management strategy for small (≤4 cm) and nonfunctional ad-renal incidentaloma.