Mixed autoimmune hemolytic anemia as the initial presentation of systemic lupus erythematosus: A case report and review

Autoimmune hemolytic anemia (AIHA) is an acquired condition caused by autoantibody mediated destruction of erythrocytes. AIHA is classified as warm or cold depending on whether the autoantibodies involved react optimally at or below body temperature (37°C), respectively. Mixed AIHA, with features of both, is rare and clinically more severe. We report a case of mixed AIHA that was found to be the presentation of systemic lupus erythematosus (SLE). Treatment with rituximab and prednisone resulted in good response. Although more commonly associated with warm AIHA, SLE can present with mixed AIHA.