A Case of Extraovarian Peritoneal Serous Papillary Carcinoma

Kenji Hasegawa, Naoko Kamano, Tokuhiro Ogura, Masashi Okuno, Osamu Yamada, Haruo Morita, Tsunehide Ohsawa, Hideho Takada, Nobuaki Shikata^* and Haruaki Izumi^*

Department of Surgery and Division of Pathology^*, Kouri Hospital of Kansai Medical University

A 74-year-old woman with history of abdominal distension and pain was found in abdominal CT to have a slight fluid collection. Laboratory studies showed only high serum CA 15-3 and CA125. Laparotomy showed widespread metastasis to the parietal peritoneum and the greater omentum, but other abdominal organs were normal. Intraoperative pathological findigns diagnosed as a cancer something like ovarian cancer. We conducted omentectomy and CDDP administered intraperitoneally at surgery. Histology of resected tissues showed extra-ovarian peritoneal serous papillary carcinoma.
She underwent adjuvant chemotherapy with intravenous CDDP, with no sign of a peritoneal tumor found at the second-look operation after 8 months, although a few cancer cells were still found histologically in the resected residual omentum. She underwent additional chemotherapy and has shown no recurrence after 24 months of follow-up. It is important to think EPSPC as a differential diagnosis of peritonitis carcinomatosa with indistinct primary tumor.

Key words
carcinosis peritonei, extraovarian peritoneal serous papillary carcinoma

Reprint requests
Kenji Hasegawa Department of Surgery, Kouri Hospital of Kansai Medical University 8-45 Kourihondouri-cho, Neyagawa-city, 572-8551 JAPAN

Accepted
July 24, 2002

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