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AIM: Aim of this study was to report the authors’ experience with the anterior transperitoneal approach, and with an anterior submesocolic approach in case of left sided lesions. MATERIAL AND METHODS: From January 1994 to January 2011, 122 males and 170 females with a mean age of 50.7 years (range: 19-84) underwent laparoscopic adrenalectomy (LA) at 2 centers in Ancona and Rome (Italy) (that follow the same protocol). Fifteen patients underwent bilateral LA, the anterior transperitoneal approach was used in 233 cases (79.8%) and the anterior submesocolic in 59 (20.2%). One hundred and two patients had Conn’s syndrome, 51 miscellaneous lesions, 55 Cushing’s syndrome, 47 incidentalomas, 46 pheochromocytoma, 2 metastatic masses, 2 myelolipomas and 2 adrenogenital syndromes. The lesions had a mean diameter of 3.24 cm (range: 0.5-10). RESULTS: Mean operating time was 120 minutes (range: 30-390). Conversion to open surgery was required in 13 cases (4,45%). Blood pressure and heart rate were stable during the operation. There were 5 major complications. Mobilization and resumption of diet occurred on the first postoperative day. Mean hospital stay was 4.32 days (range: 2-30). DISCUSSION: Early identification and ligature of the adrenal vein, with minimal gland manipulation, are the major advantages, especially in case of pheochromocytoma. CONCLUSIONS: Adrenal masses can be successfully treated using a laparoscopic transperitoneal anterior approach, in presence of a suitable anesthesiological and surgical team’s experience.