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Coombs-positive autoimmune hemolytic anemia and postinfantile giant cell hepatitis in children
A R Perez-Atayde1, S M Sirlin, M Jonas
1Department of Pathology, Children's Hospital, Boston, Massachusetts 02115.
Insights
This study links autoimmune hemolytic anemia to recurrent severe hepatitis in children. Early immunosuppression may prevent liver damage and cirrhosis in this condition.
Area of Science:
- Pediatric Hepatology
- Autoimmune Disorders
- Hematology
Background:
- Autoimmune hemolytic anemia (AIHA) is a condition where the immune system attacks red blood cells.
- Hepatitis, or liver inflammation, can have various causes, including autoimmune diseases.
- Giant cell hepatitis is a rare form of liver disease characterized by multinucleated hepatocytes.
Observation:
- Two pediatric patients, a 23-month-old girl and a 9-month-old boy, presented with AIHA.
- Both patients subsequently developed recurrent episodes of severe hepatitis.
- Liver biopsies revealed characteristic changes including giant cell transformation and fibrosis.
Findings:
- The patients experienced hepatitis episodes weeks to months after AIHA diagnosis.
- One patient developed micronodular cirrhosis and died within five months.
- The second patient showed improvement with steroid therapy, but hepatitis recurred upon tapering, suggesting an autoimmune basis.
Implications:
- Postinfantile giant cell hepatitis can be associated with Coombs-positive hemolytic anemia.
- An autoimmune mechanism is suspected in this combined presentation.
- Prompt and continuous immunosuppressive therapy may be crucial for managing hepatocellular damage and preventing cirrhosis.
Abstract:
We report a 23-month-old girl and a 9-month-old boy who presented with autoimmune hemolytic anemia followed by recurrent episodes of severe hepatitis. The first episode of hepatitis occurred 1 week and 15 months after presentation, respectively. Histologically, the livers showed loss of lobular architecture with diffuse giant cell transformation of hepatocytes and portal and pericellular fibrosis. The first patient died at 4 1/2 months after her initial presentation with a well-established micronodular cirrhosis. The second patient responded to steroid therapy and the hepatitis recurred when steroids were tapered. Postinfantile giant cell hepatitis may occur in association with Coombs-positive hemolytic anemia, it is thought to have an autoimmune mechanism, and early and sustained immunosuppression may control the progressive hepatocellular damage and prevent cirrhosis.