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In a study of persistent abnormalities of liver-function tests in hemophilic patients deficient in factor VIII or IX and treated with factor VIII or IX concentrates, we examined 14 liver biopsies from 13 anti-HBs-positive patients. None had any symptoms of liver disease. All had chronically abnormal levels of alanine aminotransferase. Histologic studies showed chronic persistent hepatitis in eight patients, chronic active hepatitis in four and fatty infiltration with portal fibrosis in one. Indirect immunofluorescence of antiserums containing anti-HBs or anti-HBc (or both) revealed nuclear and cytoplasmic fluorescence in the hepatocytes of eight of 12 patients. Specificity testing of these antiserums confirmed that hepatitis B viral markers are present in the hepatocytes of these anti-HBs-positive patients. These histologic derangements are probably related to frequent treatment with blood products obtained from multiple donors and to the persistance of hepatitis B virus in hepatocytes despite the presence of circulating anti-HBs.
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