[Strategies for marginally resectable tumor in patients with advanced ovarian cancer].

There are approximately 7, 000 cases of ovarian cancer in Japan every year. The lack of an appropriate examination for ovarian cancer contributes to nearly half the cases being undetected until reaching advanced stages III and IV. By the ovarian cancer treatment guidelines, primary debulking surgery is a standard modality for the initial treatment of ovarian cancer. Many studies have reported that the prognosis is clearly improved once optimal surgery(residual disease<1 cm)is successfully performed for advanced ovarian cancer. Actually, no residual disease group that underwent complete cytoreductive surgery was improved more significantly than the residual disease<1 cm group. For achievement of a complete cytoreductive surgery, there is a need to devise some appropriate strategies for marginally resectable tumors in patients with advanced ovarian cancer.