Paroxysmal Cold Hemoglobinuria (PCH): |
Autoimmune, IgG target blood group P antigen; Antibody-mediated intravascular hemolysis, anemia; red blood cells cleared by macrophages in spleen |
Cold Agglutinin Disease (CAD): |
Autoimmune, IgM antibodies target blood group I or i carbohydrate epitopes; bind preferentially low temperatures, antibody-mediated hemolysis and thrombocytopenia; red blood cells and platelet cleared by macrophages in spleen |
Hemolytic Uremic Syndrome (HUS) |
Often accompanied by infections (E.coli strains and S. pneumoniae); hemolysis, thrombocytopenia |
Immune Thrombocytopenia (ITP) |
Anti-GPIbα antibody induce sialidase secretion and desialylation of platelets, platelet clearance via AMR |