A Case of Adenocarcinomain situof the Distal Common Bile Duct Diagnosed by Percutaneous Transhepatic Cholangioscopy

Abstract

Extrahepatic cholangiocarcinoma is often clinically challenging to diagnose. Even multidisciplinary approaches which include computed tomography, magnetic resonance imaging, and endoscopic retrograde cholangiography are unsatisfactory in some cases, especially with biliary stricture. Percutaneous transhepatic cholangioscopy (PTCS) with its direct visualization for biopsy appears to be a promising technique for detecting cholangiocarcinoma at an early stage. We report a case of adenocarcinoma in situ of the distal common bile duct (CBD) that was confirmed by PTCS. This case suggests the useful role of PTCS in the differential diagnosis of a distal CBD obstruction, particularly when other diagnostic modalities do not provide definitive information.

Diagnostics of the tumour of the proximal extrahepatic bile ducts at the early stage of its development with the use of per-oral cholangioscopy

“…Браш-цитология и внутрипротоковая биопсия имеют чув-ствительность не более 50% [8]. В виду этого эндо-скопия желчных протоков с прицельной биопсией дают наиболее высокие результаты в дифференци-альной диагностике при механической желтухе, особенно у пациентов с подозрением на рак желч-ных путей [9].…”