When the groups that underwent lymphadenectomy and did not undergo lymphadenectomy were compared, no significant difference was found between the groups in terms of age, menopausal status, stage, tumor grade, bilaterality, ascites, tumor size, and preoperative cancer antigen 125 (CA 125), carbohydrate antigen 19-9 (CA 19-9), carcinoembryonic antigen (CEA) (Table-I). This evidence concerns the gene MUC16 and neoplasm.