A Case of Mixed Mesodermal Tumor arising from the Left Ovary, suspected of the Intraperitoneal Recurrence after Rectal Cancer Surgery

Naotake Homma¹⁾²⁾, Kouji Taira¹⁾, Hohei Hishiyama¹⁾, Yutaka Nakamura¹⁾, Hiroto Manase¹⁾²⁾ and Masaki Miyamoto²⁾

Department of Surgery, Asahikawa Red Cross Hospital¹⁾
Department of Surgical Oncology, Hokkaido University Graduate School of Medicine²⁾

Mixed mesodermal tumor (MMT) is potentially highly malignant and rarely involves the ovaries. When it does, however, the prognosis is dismal. Cytoreductive surgery and the use of new chemotherapy is expected to improve this prognosis. We report a case of preoperative left ovarian MMT, suspected to be due to local recurrence or localized peritoneal recurrence. Localized solitary intraperitoneal tumor after colorectal cancer surgery may yield a favorable outcome in surgical resection if recurrence is peritoneal. For other primary tumors, it is useful in determining the treatment course. This is, to our knowledge, the first report of ovarian MMT growing over time. retrospectively.

Key words
peritoneal recurrence, mixed mesodermal tumor, rectal cancer

Reprint requests
Naotake Homma Department of Surgical Oncology, Division of Cancer Medicine, Hokkaido University Graduate School of Medicine
Kita-15 Nishi-7 Kita-ku, Sapporo, 060-8638 JAPAN

Accepted
September 26, 2007

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