[Morphologic criteria for the assessment of etiology, degree of activity and stage of the process in viral chronic hepatitis B and C].

New classification of chronic hepatitis (Los Angeles) and the experts' comments widen the armory of a practical pathologist. A complete system of etiological verification with the use of both direct and indirect markers of various types of chronic viral hepatitis is presented. Original ranking systems of the assessment of the most important parameters in these diseases are also provided: possibility of the evaluation of chronic hepatitis activity depending on the histological activity index and stage of inflammatory process chronicity according to the histological index of the stage of chronicity. This allows to determine the patients' morphological status, this facilitating a precise morphological diagnosis.