While papillary serous adenocarcinomas are histocytologically common in primary peritoneal carcinomas, clear cell carcinomas are rare. We report a new regimen for the treatment of recurrent clear cell carcinomas of the peritoneum. A 45-year-old woman was referred to our hospital and underwent optimal debulking surgery. Thirty-two months after the operation, lymph node swelling and elevation of serum CA19-9 were detected and recurrence was diagnosed. Paclitaxel (175 mg/m2) in a 3-hour and carboplatin (300 mg/m2) in a 1-hour infusion were repeated at three-week intervals. After completion of four courses, abdominal CT and serum CA19-9 were undertaken and results compared. Lymph node swelling was significantly decreased and the serum CA19-9 level was decreased to within a normal range. Paclitaxel and carboplatin combination chemotherapy may be effective in preventing the recurrence of peritoneal carcinomas.

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