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  • Title: Iron-rich foci in chronic viral hepatitis.
    Author: Lefkowitch JH, Yee HT, Sweeting J, Green PH, Magun AM.
    Journal: Hum Pathol; 1998 Feb; 29(2):116-8. PubMed ID: 9490268.
    Abstract:
    Stainable iron in the liver (hemosiderosis) is most commonly seen in individuals with homozygous genetic hemochromatosis, prior transfusion, hemolysis, porphyria cutanea tarda, and chronic alcohol-induced liver disease. In chronic viral hepatitis, however, significant hepatocellular hemosiderosis is uncommon. This report describes unusual foci of hepatocellular hemosiderosis ("iron-rich foci" or IRF) in liver biopsy specimens from three patients with chronic hepatitis with or without cirrhosis (two hepatitis C-related, one hepatitis B-related). IRF present within the lobular parenchyma or cirrhotic nodules contrasted sharply with the immediately adjacent hemosiderin-negative liver tissue. Serum iron indices were abnormal in all three patients, but homozygous hemochromatosis was ruled out based on the hepatic iron concentration and hepatic iron index for each case. These cases highlight the potential for irregular iron storage in chronic viral liver disease and possible confusion with genetic hemochromatosis. The possible pathogenesis of IRF and the relationship of iron storage to the outcome of interferon therapy in chronic viral hepatitis are discussed.
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