RESUMO
A prospective study of the first 29 cases of percutaneous transphepatic cholangiogram at UP-PGH was evaluated as to its accuracy in detecting the causes of cholestasis, its complications and side effects. Definitive diagnosis was obtained by surgery (22), peritoneoscopy and liver biopsy (5). Percutaneous liver biopsy (1) and clinical follow-up (1). In 22 cases whose biliary trees were visualized, 19 were secondary to mechanical extrahepatic obstruction and 2 due to parenchymal liver disease. In 8 cases whose biliary trees were not visualized, 6 were secondary to parenchymal liver disease and 2 due to mechanical extrahepatic obstruction. Accuracy rate is 90% in visualized biliary trees and 75% in non-visualized biliary trees. Morbidity is minimal. (Summary)