[Polarization microscopy of bile for diagnosis of microcholedocholithiasis].

Comparative analysis of the results of microscopic examination of ductal bile was carried out in 2 groups of patients with clinical manifestations of the disease of extrahepatic bile ducts (choledocholithiasis, mechanical jaundice, cholangitis). In group 1 (17 patients) choledocholithiasis was diagnosed on the basis of ultrasound examination (USE) and direct contrast examination of the bile ducts at retrograde pancreatocholangiography (RPCG). In group 2 (17 patients) USE and RPCG proved to be uninformative and only polarizable microscopy of ductal bile taken by the method of direct endoscopical catheterization of the major duodenal papillae was able to reveal microcholedocholithiasis. It served an indication for endoscopical papillosphincterotomy performance. Thus polarizable microscopy of ductal bile is a reliable method of diagnosis of microcholedocholithiasis, which makes it possible to establish indications for correction of the major duodenal papilla.