Multilocular cyst of the kidney

Five cases of multilocular cyst of the kidney are presented with a follow-up of 8 mo to 13 yr. Two children were treated with partial nephrectomy and three with nephrectomy. Radiation therapy and chemotherapy were not given pre- or postoperatively. Ultrasonography is helpful in preoperative diagnosis of this lesion. A brief review of the literature, differential diagnosis, possible etiology, preoperative evaluation and treatment are discussed.