Pseudo-Meigs' syndrome caused by ovarian metastasis from rectosigmoid cancer

We herein report an extremely rare case of pseudo-Meigs' syndrome associated with ovarian metastasis from rectosigmoid cancer. A 42 year-old woman was admitted complaining of abdominal fullness. Preoperative examinations revealed a huge pelvic tumor, adenocarcinoma of the rectosigmoid, a large amount of ascites and hydrothorax. Laparotomy revealed that the pelvic mass, histologically confirmed as an adenocarcinoma compatible with metastasis from colon cancer, originated from the left ovary. Resection of the rectosigmoid and a bilateral oophrectomy with hysterectomy were performed. Although short-term intrathoracic drainage was required, the hydrothorax and ascites were rapidly resolved in an early period after surgery. The patient is alive without evidence of recurrence 42 months postoperatively. Including this report, there have been only six reports describing pseudo-Meigs syndrome associated with colorectal cancer. The present case and the literature review demonstrate that overian metastasis from colorectal cancer can cause pseudo-Meigs syndrome and that resection of the ovarian lesions would improve prognosis.