[Multiple vascular thromboses in severe acute autoimmune hemolytic anemia with Mycoplasma pneumoniae serology treated by plasma exchange and immunosuppressive agents].

A 5,9 year old girl presented a severe and acute auto-immune hemolytic anemia, unresponsive to steroids, treated by 10 plasma exchanges, immunosuppressive agents and splenectomy. Despite an anticoagulant treatment, occurrence of multiple thrombosis. Unusual evolution of Mycoplasma serological tests.