Wilson's disease is caused by toxic copper accumulation, which leads predominantly to hepatic and basal ganglia damage. Characteristic findings in MRI and electrophysiologic examinations are described according to the occurrence of neurological symptoms. In the present study, 28 patients suffering from Wilson's disease (neurological type) were investigated. The results of MRI are compared with abnormalities of evoked potentials (BAEP, MSEP, T-VEP, MEP). All patients show hypodensities in the basal ganglial area (putamen and GI. pallidus) regularly combined with atrophy of the cerebrum and cerebellum in MRI. Signal abnormalities in the mesencephalic region (46% occurrence) and Nc. dentatus (36% occurrence) are combined with the other findings in variable patterns. Only slight changes are found in the pontine region. BAEP are disturbed in 71% of all cases and MSEP in 46%. Combined abnormalities of BAEP and MSEP were found in 39%. Pathological values occurred with a lower frequency in T-VEP (36%) and MEP (39%). The comparison of MRI findings with electrophysiological data done separately for each patient reveals no strong correlation between both methods. Individual MRI findings do not correspond with the patterns of disturbed evoked potentials and vice versa. Therefore we conclude that these methods, MRI and electrophysiological evaluation, supplement each other. Magnetic resonance imaging and electrophysiological evaluation should be performed simultaneously for therapy monitoring.

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