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Autoimmune hemolytic anemia with warm antibodies complicated with an intercurrent attack of hemolysis with cold agglutinins in a case of Waldenström disease.

The paper presents a case of autoimmune hemolytic anemia (AIHA) with warm IgG antibodies associated with Waldenström's disease in which in the stage of compensated hemolysis after treatment, there appeared a severe hemolytic attack induced by transitory cold agglutinins with high thermal amplitude. The case described is a novelty by the intrication of two autoantibody populations which causes autoimmune hemolysis. The difference from other similar associations is discussed.