Abstract
A previously well 18-year-old female was referred to our hospital because of abnormalities of blood biochemistry and slight jaundice. Because serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were elevated more than 6000 IU/L, the patient was suspected to have acute viral hepatitis. The platelet count on admission was 9.7×10 4/μl, which was decreased from the initial value of 21×10 4/μl for 3 days. The coagulation tests revealed marked elevation of d-dimmer, fibrinogen degradation products and thrombin–antithrombin III complex suggesting increase in fibrinolysis. Serum levels of high density lipoprotein cholesterol and ferritin were markedly decreased and increased, respectively. The bone marrow smears revealed proliferation of mature histiocytes ingesting platelets and erythrocytes, these pathological findings were consistent with those of hemophagocytic syndrome (HPS). In addition, anti-hepatitis A IgM antibody in the serum and hepatitis A virus (HAV) RNA in the stool were positive. Therefore, the patient was diagnosed as having acute hepatitis A with probable HPS. Since a fulminant clinical course was suspected, glucocorticoid pulse therapy was started immediately 7 days after onset and a favorable clinical outcome resulted.
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