title: [A clinicopathologic study of biliary intraductal papillary neoplasm].
abstract: OBJECTIVE
  To investigate the clinicopathologic features, diagnosis and treatment of biliary intraductal papillary neoplasm (IPN-B).
  
  
  METHODS
  The clinical, histopathological, treatment and prognosis data of 23 patients with IPN-B treated from January 1998 to December 2007 were retrospectively analyzed.
  
  
  RESULTS
  There were 13 male and 10 female, aged from 30 to 80 years [mean age was (61 +/- 12) years]. The clinical manifestation included 10 cases with asymptomatic, 7 cases with abdominal pain, 4 cases with jaundice, 1 case with emaciation, and 1 case with acute cholangitis, respectively. Nine patients were also associated with hepatolithiasis. The average diameter of the tumors was (6 +/- 4) cm, 4 lesions were located in the right lobe, 15 in the left lobe, and 4 in the extrahepatic bile duct. Histopathologically, there were 4 adenomas, 1 borderline neoplasm, 6 carcinomas in situ, and 12 carcinomas. All patients received operation;the mean duration of follow-up was (33 +/- 28) months. Overall 3-year and 5-year survival rates of IPN-B were 85.3% and 68.2% respectively.
  
  
  CONCLUSIONS
  IPN-B represents a distinct clinicopathologic entity. Favorable prognosis for IPN-B is offered by curative resection.
authors.affiliation: Department of General Surgery, Qilu Hospital, Shandong University, Jinan 250012, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Li
authors.forename: Jia
authors.initials: J
authors.lastname: Fan
authors.forename: San-yuan
authors.initials: SY
authors.lastname: Hu
authors.forename: Zhao-you
authors.initials: ZY
authors.lastname: Tang
authors.forename: Xu-ting
authors.initials: XT
authors.lastname: Zhi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001650:Bile Duct Neoplasms / Q000473:pathology* / Q000601:surgery; D002291:Carcinoma, Papillary / Q000473:pathology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012189:Retrospective Studies