A Case of Primary Duodenal Cancer Associated with the Eggs of Schistosom japonicum

Hideaki Shimada, Yoshio Gunji, Takenori Ochiai, Kaichi Isono

The Department of Surgery (II), Chiba University School of Medicine

A case of duodenal cancer associated with the eggs of schistosoma japonicum is reported. A 67-year-old woman was admitted to our hospital for close examination of the upper gastrointestinal tract. Duodenal adenocarcinoma was found but she refused to be operated on that time. Two years later, she was admitted again complaining of appetite loss and upper abdominal pain. Barium X-rays and endoscopy revealed a Bormann 2 type-like tumor in the second portion of the duodenum. Tubullar adenocarcinoma cells mixed with the eggs of schistosoma japonicum in the biopsy specimen. Pancreaticoduodenectomy and lymphadenectomy were performed. Histopathologically, the tumor was moderately differentiated tubular adenocarcinoma and the part of it has invaded the pancreatic capsule. Primary duodenal cancer is uncommon among gastrointestinal cancers. To our knowledge, 472 cases of malignant duodenal tumors involving 262 cases of duodenal cancer have been reported in Japan. This is the first case of duodenal cancer associated with schistosomiasis japonica.

Key words
duodenal cancer, schistosomiasis japonica malignant duodenal tumor

Reprint requests
Hideaki Shimada Department of Surgery (II), Chiba University School of Medicine
1-8-1 Inohana, Chu-ou-ku, Chiba, 260 JAPAN

Accepted
December 8, 1993

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