 In patients with advanced ovarian cancer FIGO stage III-IV, a percentage between 50 and 80 had lymph node metastases at diagnosis, mainly in para-aorto-caval 48 and iliac areas 49. In 1988, FIGO has included lymph node metastasis in stage IIIC, although some authors argue that only node involvement constitutes a clinical course different from IIIC cancer patients with abdominal diffusion. 