IgG4-related sclerosing cholangitis mimicking cholangiocarcinoma diagnosed by endoscopic ultrasound-guided fine-needle aspiration

Ryotaro Matsumoto, Shin Miura, Atsushi Kanno, Mio Ikeda, Takanori Sano, Yu Tanaka, Tatsuhide Nabeshima, Seiji Hongou, Tetsuya Takikawa, Shin Hamada, Kiyoshi Kume, Kazuhiro Kikuta, Atsushi Masamune

Research output: Contribution to journalArticlepeer-review

Abstract

A 58-year-old man was referred for obstructive jaundice. Imaging modalities revealed the presence of multiple pancreatic tumors and the stenosis of the middle common bile duct due to a hypoenhanced localized tumor. The multiple pancreatic tumors were histopathologically diagnosed as autoimmune pancreatitis by endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). To differentiate between IgG4-related sclerosing cholangitis (IgG4-SC) and cholangiocarcinoma, we diagnosed the biliary tumor as IgG4-SC by EUS-FNA because of insufficient pathological materials obtained in a transpapillary manner. We herein report a case of IgG4-SC diagnosed by EUS-FNA.

Original languageEnglish
Pages (from-to)945-950
Number of pages6
JournalInternal Medicine
Volume59
Issue number7
DOIs
Publication statusPublished - 2020

Keywords

  • Fine-needle aspiration
  • IgG4
  • IgG4-related diseases
  • Obstructive jaundice
  • Pancreatitis
  • Sclerosing cholangitis

ASJC Scopus subject areas

  • Internal Medicine

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