Department of Neurology, National Reference Center for ‘Rare Peripheral Neuropathies’, University Hospital of Limoges (CHU Limoges - Dupuytren Hospital), 2 avenue Martin Luther King, 87042 Limoges, FranceDepartment of pathology, University Hospital of Limoges (CHU Limoges - Dupuytren Hospital), 2 avenue Martin Luther King, 87042 Limoges, France