[Adenocarcinoma (Klatskin tumor) of the hepatic duct simulating viral hepatitis].

The authors review the experiences obtained during investigation of a patient with Klatskin tumor and whose clinical syndromes were developing as of virus hepatitis. In the first two weeks of the illness the clinical symptoms, the chemical laboratory findings and among the virus investigations the positive (experimental) Non-A Non-B hepatitis virus antigen suggested the existence of virus hepatitis. Later the laboratory investigations and the symptoms showed on obstructive icterus. The subsequent performed investigations as ultrasonography and PTC--showed the Klatskin tumor, which was proven by the operation performed and histology. The patient is free from the complaints more than 1 year after the operation, moreover recidivation or metastasis was not indicated by the investigations performed in the latest time.