[A case of autoimmune hemolytic anemia caused by type A influenza infection in a patient with alcoholic liver cirrhosis].

Adult autoimmune hemolytic anemia (AIHA) caused by influenza virus infection is very rare. I report a case of AIHA induced by type A influenza infection in a patient with alcoholic liver cirrhosis. A 67-year-old man with alcoholic liver cirrhosis was hospitalized with jaundice and ascites. At 7 days after admission, type A influenza infection was diagnosed, and this progressed to hemolytic anemia. Direct and indirect Coombs' tests were positive, and his anemia was diagnosed as warm-type AIHA. Prednisolone administration improved the anemia, but the patient died due to hepatorenal syndrome 14 weeks after admission.