Bilateral perisylvian softenings: bilateral anterior opercular syndrome (Foix-Chavany-Marie syndrome).

Five cases of facio-pharyngo-glosso-masticatory diplegia with automatic voluntary dissociation, i.e., bilateral anterior opercular syndrome (Foix-Chavany-Marie syndrome), are described together with the morphological correlations in four. The localizing value of the syndrome and of CT scanning are stressed.