Ex vivo magnifying endoscopic observation of bile duct mucosa using narrowband imaging

Journal of Hepato-biliary-pancreatic Sciences
Yusuke IshidaTakuji Torimura

Abstract

Detailed endoscopic findings of the bile duct mucosa have not been fully established. This fundamental ex vivo study assesses the relationship between magnified endoscopic findings and pathological findings of the bile duct mucosa. Forty-one surgically resected common bile duct mucosae were investigated. Each common bile duct was cut open longitudinally for ex vivo endoscopic observation. A magnifying endoscope commonly used for the gastrointestinal tract was used, using both white light imaging and narrowband imaging. After pathological diagnosis, the association between the magnifying endoscopic findings and histopathology was evaluated. Totally, 39 non-neoplastic mucosae and 13 neoplastic mucosae were evaluated. In 13 non-neoplastic mucosae without inflammation, an oval-shaped depressed area and a fine, regular network of microvessels were observed. These findings were not clearly seen or not seen at all in the non-neoplastic mucosae with inflammation. Although vessels with loop-like structure were observed on all eight papillary tumors of 13 neoplastic mucosae, no characteristic vessels were seen on the other five. Ishida and colleagues assessed the association between magnifying endoscopic findings and histopathological fi...Continue Reading

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Apr 25, 2013·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Yusuke IshidaMichio Sata
Aug 29, 2013·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Takao NishikawaOsamu Yokosuka
Feb 19, 2015·Journal of Hepato-biliary-pancreatic Sciences·Masaru MiyazakiTadahiro Takada
Sep 19, 2015·Best Practice & Research. Clinical Gastroenterology·Yusuke IshidaYoshinobu Okabe

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Citations

Dec 7, 2018·Clinical Endoscopy·Yun Nah LeeHyun Jong Choi
Jul 26, 2019·Current Treatment Options in Gastroenterology·Yusuke IshidaYoshinobu Okabe

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