Article révisé par les pairs
Résumé : We report the case of a 70 years old woman who developed a thrombotic thrombocytopenic purpura. Despite a treatment with corticoids and high doses IV gammaglobulins , the patient developed seizures. Treatment with plasma exchanges combined with plasma infusions allowed recovery. The authors review the clinical and biological aspects as well as the pathogeny of the disease. The authors insist on the importance of the plasma exchanges in the treatment of this disease.