Sensory ataxia caused by central axonopathy

Sensory ataxia with central axonopathy. A case of sensory ataxia of undefined origin is described and the differential diagnosis is discussed. The originality of the case lies in the fact that the nerve sensory potentials are preserved whereas the medullary and cortical somesthesic potentials no longer exist. This situates the pathological process in the central axon of the sensory ganglion, as in tabes or clioquinol poisoning.