[Changes in the liver biopsies of pediatric cancer patients who carry the B virus].

Liver biopsies from 27 patients with malignant diseases and virus B carriers state were studied. The age of the patients ranged from 2 to 14 years. ELISA tests for virus B hepatitis were performed in all patients. Three of them resulted HBV positive at admission, whereas 24 became positive after anti-tumoral treatment onset. One patient was also virus C positive. Morphological disorders findings comprises: symptomless acute hepatitis in 7 patients (including the B-C carrier), minimal hepatocytes damage was found in 17 patients as the result of their carriers state and where also certain drug-induced hepatotoxic effect might be present. In this group there were also 7 biopsies with minimal portal region damage. Three biopsies were reported as normal liver tissue. This results confirmed the significance of the study of serological hepatitis viral test and hepatic biopsy in high risk group patients, where it is also necessary the vaccination against HBV before treatment onset.