A Case of Mucinous Cystoadenocarcinoma of Appendix with Pseudomyxoma, Concomitant with a Synchronous Gastric Cancer

Shun Kudoh, Hiroshi Kawamura, Yuko Suzuki, Masami Matsuzaki, Moriyuki Nishina, Jin-ichi Kameyama*, Masaru Tsukamoto*

Department of Surgery, Sanyudo Hospital
*First Department of Surgery, Yamagata University School of Medicine

A rare case of mucinous cystoadenocarcinoma of the appendix with pseudomyxoma, concomitant with gastric cancer is reported. A 61-year-old woman admitted to our hospital on January 11, 1995, with abdominal distension. She was diagnosed as having early gastric cancer with ascites of uncertain origin. At the operation, the abdominal cavity was found to be filled with approximately 500 g of a mucinous and gelatinous fluid, and a ruptured mucinous appendiceal tumro was found. Gastrectomy and ileocecal resection with intra-peritoneal lavage by a large quantity of warm physiological saline were performed. Pathological examination revealed double cancers of gastric cancer and mucinous cystoadenocarcinoma of the appendix, associated with pseudomyxoma. The patient has no sign of recurrence at present, a year after the operation. To our knowledge, synchronous double cancers consisting of an appendiceal cancer associated with pseudomyxoma and a gastric cancer are extremely rare, and have not been previously reported in Japan.

Key words
mucinous cystoadenocarcinoma of appendix, pesudomyxoma, synchronous gastric cancer

Reprint requests
Shun Kudoh Department of Surgery, Sanyoudo Hospital
6-1-219 Chuo, Yonezawa-shi, 922 JAPAN

Accepted
March 6, 1996

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