The adrenal glands are often the site of metastases. However, there is much discussion as to the benefits of surgical resection. Personal experience of surgical treatment in 4 patients, one of whom died postoperatively after bilateral adrenalectomy for metachronous metastases, is reported. Surgery achieved pain relief in all patients, average survival was 30 months and 1 patient is still alive after 68 months. The present study shows that surgery is advisable in patients who present the following characteristics: 1) the primary tumor has been resected or is radically resectable, 2) there is no evidence of other metastatic lesions, 3) the adrenal metastasis is unilateral and complete resection is possible, 4) the patient's general physical condition is good.