[1] Grp Hosp Pitie Salpetriere, APHP, Div Mazarin, Serv Neurol 2, F-75013 Paris, France
[2] Grp Hosp Pitie Salpetriere, APHP, Serv Neuropathol, F-75013 Paris, France
[3] Grp Hosp Pitie Salpetriere, APHP, Serv Neuroradiol, F-75013 Paris, France
[4] Univ Paris 06, Ctr Rech, Inst Cerveau & Moelle Epiniere, UMR S975,Fac Med Pitie Salpetriere, Paris, France
[5] INSERM, U975, Paris, France
[6] CNRS, UMR 7225, Paris, France