Hyperuricemia developed in 2 children with autoimmune hemolytic anemia with reticulocytopenia at a time of hemolytic crisis. One likely cause of hyperuricemia is the destruction of nucleated RBC precursors by autoantibodies. It is advised that patients with autoimmune hemolytic anemia with reticulocytopenia be examined for hyperuricemia. This might explain the reason for reticulocytopenia and might prevent unnecessary bone marrow procedures. When hyperuricemia is present, supportive therapy might be needed to prevent renal damage.
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