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Direct peroral cholangioscopy combined with argon plasma and radio-frequency ablation in restoring the patency of a self-expandable metal stent.
Prz Gastroenterol
September 2024
Ward of General Surgery, Regional Hospital, Sieradz, Poland.
Efficacy of mapping biopsy using a novel sheath system for the histological diagnosis of superficial ductal spread in distal cholangiocarcinoma: A retrospective multicenter study.
J Hepatobiliary Pancreat Sci
January 2025
First Department of Internal Medicine, Gifu University Hospital, Gifu, Japan.
Background: Mapping biopsy (MB) can evaluate superficial ductal spread (SDS) through the histopathological diagnosis of cholangiocarcinoma, enabling the selection of an appropriate surgical procedure. This retrospective study evaluated the efficacy of MB using a novel sheath system in distal cholangiocarcinoma (dCCA) cases.
Methods: A total of 199 cholangiocarcinoma cases underwent preoperative diagnosis.
High-grade biliary intraepithelial neoplasia localized in the distal bile duct diagnosed via peroral cholangioscopy: A rare case report.
Medicine (Baltimore)
December 2024
Department of Endoscopy, NHO Kure Medical Center and Chugoku Cancer Center, Hiroshima Prefecture, Japan.
Rationale: Biliary intraepithelial neoplasm (BilIN) is characterized by a microscopically identifiable preinvasive neoplasm of the biliary tract. BilIN is rarely diagnosed intentionally and is often detected incidentally in surgical specimens obtained via surgical resection for other types of cancers. Herein, we report a rare case of high-grade BilIN localized in the distal bile duct.
View Article and Find Full Text PDFIntraductal Papillary Neoplasm of the Bile Duct Occurring 37 Years after Surgery for Congenital Biliary Dilatation: A Case Report.
Intern Med
December 2024
Department of Gastroenterology, Sendai City Medical Center, Japan.
We present the case of a 54-year-old woman who was diagnosed with intraductal papillary neoplasm of the bile duct (IPNB) in the remnant intrapancreatic bile duct, 37 years after surgery for congenital biliary dilatation. Endoscopic ultrasonography revealed a papillary, low-echoic mass in the intrapancreatic bile duct, and peroral cholangioscopy revealed a papillary mucosa. A pancreaticoduodenectomy was performed, and the patient was pathologically diagnosed with type 1 pancreatobiliary-type IPNB with associated invasive carcinoma.
View Article and Find Full Text PDFStructural or functional abnormality of sphincter of Oddi: an important factor for the recurrence of choledocholithiasis after endoscopic treatment.
Ann Med
December 2025
Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China.
A high recurrence rate is undesirable after treatment of common bile duct (CBD) stones. A major risk factor identified for recurrence is that invasive techniques, including surgical or endoscopic treatments, will impair the biliary tract system either by direct incision of the CBD or by cutting or dilating the ampulla of Vater. During endoscopic treatment, two main assisted methods for lithotomy, sphincterotomy and papillary balloon dilation, can result in different degrees of damage to the structure and function of the sphincter of Oddi (SO), contributing to slowing of biliary excretion, cholestasis, biliary bacterial infection, and promotion of bile duct stone recurrence.
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