[Roussy-Levy's syndrome: clinical aspects (author's transl)].

A case of non familial Roussy-Lévy syndrome is presented: optic atrophy, gait ataxia, bilateral hypotrophy of thenar and hypothenar muscles, weak deep tendon reflexes of the upper limbs, weak knee jerks, absent ankle jerks, bilateral Babinski, anapallaesthesia from the bisiliac spine distally, bilateral pes cavus. The literature on Roussy-Lévy syndrome is discussed and whether this syndrome should be considered as a precise entity among heredo-degenerative diseases. The overlapping of differing clinical features may suggest an intermediate form between Friedreich's and Charcot-Marie-Tooth's diseases.