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Clinical features of pancreaticobiliary maljunction: update analysis of 2nd Japan‐nationwide survey
Author(s) -
Morine Yuji,
Shimada Mitsuo,
Takamatsu Hideo,
Araida Tatsuo,
Endo Itaru,
Kubota Masayuki,
Toki Akira,
Noda Takuo,
Matsumura Toshinobu,
Miyakawa Shuichi,
Ishibashi Hiroki,
Kamisawa Terumi,
Shimada Hiroshi
Publication year - 2013
Publication title -
journal of hepato‐biliary‐pancreatic sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.63
H-Index - 60
eISSN - 1868-6982
pISSN - 1868-6974
DOI - 10.1007/s00534-013-0606-2
Subject(s) - medicine , gallbladder cancer , bile duct cancer , bile duct , gastroenterology , gallbladder , pancreatic cancer , cancer registry , general surgery , cancer
Pancreaticobiliary maljunction (PBM) is a congenital anomaly, which can be defined as a union of the pancreatic and biliary ducts located outside off the duodenal wall. We herein investigate clinical features of PBM including as the 2nd report of a Japanese nationwide survey. Patients and methods During a period of 18 years (from 1990 to 2007), 2,561 patients with PBM were registered at 141 medical institutions in Japan. Among them, eligible patients ( n = 2,529) were divided into two groups: adult ( n = 1,511) and pediatric patients ( n = 1,018). Comparisons of clinical features including associated biliary cancers were performed according to the biliary dilatation (BD), age factor, and time era. Results Only one case in pediatric patients with BD combined with a bile duct cancer (0.1 %). In adult patients, the bile duct cancer and the gallbladder cancer was seen in 6.9 and 13.4 % patients with BD and in 3.1 and 37.4 % patients without BD, respectively. In adult patients with BD, the occurrence rates of biliary cancers were increased in latter period (00′—07′) compared with former period (90′—99′). The ratio of biliary cancer localization was changed between former and latter period, and the bile duct cancer was increased in latter period (from 5.5 to 9.3 %). Conclusions The largest series of PBM were evaluated to clarify the clinical features including the associated biliary cancer in this Japan‐nationwide survey. This report could be widely used in the future as a reference data for diagnosis and treatment of PBM.