[Diagnostic value and the criteria for abdominal echography in cancer of the gallbladder and bile ducts].

Sixty one patients were studied during a three-year clinical investigation: 39 patients with cancer of gallbladder and 22 with cancer of biliary ducts. The diagnostic values of echography in those diseases was assessed. The method proved to be sensitive in 84,6 per cent in cancer of gallbladder, with specificity in 94,6 per cent and accuracy in 90,5 per cent and in cancer of biliary ducts, with the exception of papilla of Vater, those values were 66,6, 96,2 and 95,5 per cent respectively, and in papilla--28,6, 98,8 and 93,7 per cent. The good diagnostic values of the method in cholestasis and the place of biliary stop is stressed upon. Various echographic images of cancerous alterations of gallbladder and biliary ducts are described.