A Case of Primary Cold Agglutinin-Mediated Hemolytic Anemia Successfully Treated with Steroids.

Cold agglutinin disease (CAD) is an uncommon subtype of autoimmune hemolytic anemia (AIHA). Cold agglutinin syndrome (CAS) may occur secondary to infections, autoimmune disorders, or malignancies, which must be ruled out to establish a diagnosis of primary CAD. Typically, cold autoimmune hemolytic anemia (cAIHA) is unresponsive to corticosteroid therapy. However, we report a case of a 69-year-old male patient with primary CAD who was successfully treated with corticosteroids. The patient demonstrated marked clinical improvement and normalization of hemolytic markers following treatment with prednisone.