Clinical Gastroenterology Vol.18 No.8(1)

Theme Diagnosis of Biliary Tract Cancer -- Present Status and Perspective
Title Pathological Features of Biliary Tract Tumors: Particularly Associated with Eary Cancer
Publish Date 2003/07
Author Toshio Morohoshi 1st. Department of Pathology, Showa University School of Medicine
Author Toshiaki Kunimura 1st. Department of Pathology, Showa University School of Medicine
Author Nobuyuki Ooike Department of Pathology, Showa University Northern Yokohama Hospital
Author Tetsuya Hamamoto Department of Pathology, Tama Nanbu Tiiki Hospital
Author Tomoko Inagaki 1st. Department of Pathology, Showa University School of Medicine
Author Motohiro Kojima Department of Hospital Pathology, Showa University School of Medicine
[ Summary ] In the performance of clinical oncology for the bile duct system, general pathologists are often called on to treat early precancerous and cancerous lesions. In this paper, we summarized the pathological characteristics of cancer occurring in the extrahepatic bile duct, the gallbladder and the papilla Vater, and also discussed general opinions about early and precancerous lesions, with a presentation of the cases examined. Complicated lesions with anomalous arrangements in the pancreatobiliary duct system may suggest carcinogenesis in this area. The general rule in Japan for cancer of the extrahepatic duct system seems to be based on advanced cancer, now however, a new histological classification based on early stage cancer, as well as precancerous lesions, may soon be recommended.
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