Severe acute haemolytic transfusion reaction secondary to a plasma incompatible group B platelet transfusion.

Objectives: To report a rare case of acute hemolytic transfusion reaction (AHTR) following an ABO plasma incompatible group B platelet transfusion.

Background: AHTR is an uncommon, but potentially fatal event. Most reported cases of platelet transfusions associated with AHTR involve group O donors.

Complications of a severe autoimmune hemolytic anemia crisis: transfusional iron overload and gangrenous cholecystitis.

Background: Evans syndrome is a rare autoimmune disorder that is defined by the simultaneous or sequential presence of two or more cytopenias without an obvious underlying precipitating cause. Evans syndrome usually follows a chronic relapsing and remitting course and is quite rare, making it difficult to evaluate in clinical studies.

Case Report: A 66-year-old male patient with a 17-year history of Evans syndrome presented with fulminant autoimmune hemolytic anemia (AIHA).