[Sarcoidosis of the central nervous system: clinical and radiological polymorphism].

Central nervous system (CNS) neurosarcoidosis was considered to be infrequent. Clinical and radiological polymorphism explained the delay before diagnosis. With magnetic resonance imaging (MRI), diagnosis is more easily performed, especially in paucisymptomatic cases. A review of the most important clinical and radiological studies and three personal cases are reported. This underlines variable characteristics of hemispheric localizations, especially pseudotumoral forms.