Surgery Today

, Volume 42, Issue 12, pp 1240–1243

Intraductal oncocytic papillary neoplasm of the extrahepatic bile duct: report of a case

  • Yuichiro Kato
  • Masaru Konishi
  • Takahiro Kinoshita
  • Shinichiro Takahashi
  • Naoto Gotohda
  • Taira Kinoshita
Case Report

DOI: 10.1007/s00595-012-0233-6

Cite this article as:
Kato, Y., Konishi, M., Kinoshita, T. et al. Surg Today (2012) 42: 1240. doi:10.1007/s00595-012-0233-6

Abstract

We report a rare case of an intraductal oncocytic papillary neoplasm (IOPN) of the extrahepatic bile duct. A 66-year-old man was admitted to our hospital for investigation of right-sided back pain. Ultrasonography, computed tomography and magnetic resonance imaging showed a papillary lesion, 3 cm in diameter, in the middle bile duct, invaginating into the cystic duct. We made a provisional diagnosis of middle bile duct cancer and performed substomach-preserving pancreatoduodenectomy. Macroscopically, the middle bile duct contained a two-humped papillary tumor, one tip of which invaginated into the cystic duct. Microscopically, the tumor consisted of cuboidal cells with abundant eosinophilic cytoplasm resembling that of oncocytes and a fine fibrovascular core. The tumor cells were stained strongly with antimitochondria antibody. Based on these findings, the tumor was diagnosed histologically as IOPN of the extrahepatic bile duct. The patient died of prostate cancer 51 months after surgery, but without evidence of recurrence of the IOPN.

Keywords

IOPNOncocyticBile ductCholangiocarcinomaIntraductal papillary neoplasm

Copyright information

© Springer 2012

Authors and Affiliations

  • Yuichiro Kato
    • 1
  • Masaru Konishi
    • 1
  • Takahiro Kinoshita
    • 1
  • Shinichiro Takahashi
    • 1
  • Naoto Gotohda
    • 1
  • Taira Kinoshita
    • 1
  1. 1.Department of Digestive SurgeryNational Cancer Center Hospital EastKashiwaJapan