Seventy-two consecutive patients with acute lymphocytic leukemia (ALL) who had undergone liver biopsy within 3 months of completing chemotherapy were studied to evaluate histological features after 2 to 3 years of chemotherapy and to correlate liver disease to the treatment schedule, the number of transfused blood units, and the identified etiology. Fibrosis due to antiblastic drugs was the most frequent histological finding. Histological liver disease was not related either to the chemotherapy schedule or the number of transfused blood units. HBV with or without delta virus and HCV infections were related to a more severe histological liver disease. In about 40% patients with chronic liver disease, no etiology was demonstrated. Immunohistochemistry revealed HBcAg in the liver of 3 HBsAg-negative patients. In conclusion, liver biopsy could be useful in patients with persistent abnormal liver function tests after the completion of chemotherapy and in patients with markers for hepatotropic virus infection
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