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Physical examination in cold antibody AIHA. a Livedo reticularis (photograph courtesy of Professor A. Salama). b Acrocyanosis involving the toes in a patient with a high-titer IgM cold agglutinin (reprinted from Sinha A, Richardson G, Patel RT : Cold agglutinin related acrocyanosis and paroxysmal hemolysis. Eur J Vasc Endovasc Surg, 30:563-565, copyright 2005, with permission from Elsevier).
