The New England journal of medicine
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Hepatitis-associated aplastic anemia is a variant of aplastic anemia in which aplastic anemia follows an acute attack of hepatitis. The aplastic anemia, however, is often fatal if untreated. To characterize the illness, investigate the role of hepatitis viruses, and assess the response to immunosuppressive treatment, we studied patients with the syndrome who were referred to the National Institutes of Health (NIH). ⋯ The hepatitis of the hepatitis-associated aplastic anemia does not appear to be caused by any of the known hepatitis viruses. We recommend immunosuppressive treatment for patients who do not have an HLA-matched related donor available for bone marrow transplantation. Several features of the syndrome suggest that it is mediated by immunopathologic mechanism.