Abstract
An analysis of the diagnosis of extrahepatic bile duct diseases in 115 patients is presented. With the diagnostic purpose they performed ERCP, EPT, cholangioscopy. The method of direct visualization of the mucous membrane of the bile ducts allows you to identify endoscopic signs of strictures. Differential diagnosis of benign and malignant strictures of the bile ducts using cholangioscopy is difficult. Nevertheless, we were able to identify some typical signs for malignant strictures, including ulceration and mucosal infiltration, vascular pattern irregularity, stricture asymmetry.
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