Recently, some case-control studies and case reports have shown an associat
ion between solvent exposure and parkinsonisms. We present a 55-year-old ma
le parkinsonian patient with chronic exposure to n-hexane for 17 years. The
results of neurophysiological (electromyography, evoked potentials), neuro
radiological (MRI) and neuropsychological tests performed on the patient su
ggest a role of this solvent at the level of the central nervous system. Bi
ological susceptibility to neurotoxic compounds is discussed briefly.