Thirteen patients who underwent laparoscopic adrenalectomy for nonfunc
tioning adrenal tumors were compared with seven patients who underwent
open adrenalectomy. Although a longer operating time was required for
laparoscopic surgery, postoperative recovery was significantly more r
apid. Performance of adrenalectomy for nonfunctioning adrenal tumors i
s controversial, but we cannot exclude the possibility of malignancy a
nd the potential for hormone overproduction by presumably nonfunctioni
ng small tumors. The minimally invasive nature of laparoscopic surgery
may widen the indications for adrenalectomy in patients with nonfunct
ioning adrenal tumors.