J.Jpn. Surg. Soc.. 101(2): 200-204, 2000

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Feature topic

IS IT ABLE TO SIMPLIFY THE CLASSIFICATIONS OF STAGING AND CURABILITY FOR PANCREATIC CANCER?

This study was undertaken to simplify the classifications of the staging and curability of pancreatic cancer by the Japan Pancreas Society (JPS). A total of 461 patients who underwent surgical resection from 1968 to 1997 were analyzed in this study in accordance with our new classification of staging and curability. This staglng mainly consists of three factors based on tumor extent:invasion to the retroperitoneum (rp) ; invasion to the extrapancreatic nerve plexus (pl) ; and lymph node metastasis (n). Each factor is simply judged as+ (positive) or- (negative). Curability is also judged sirnply based on whether the presence of tumor is detected or not, and the degree of lymph node dissection ls not included in curability. Our staging and curability assessrnent is strongly associated with survival rates after surgery The 5-year survival rate of stage I patients is 50% and curability of A is≧50%. It is concluded that it is possible to simplify the classification of the staging and curability of pancreatic cancer by the JPS.

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