L-dopa-resistant parkinsonism syndrome following cerebral radiation therapy for neoplasm.
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- Published online on: November 1, 2000 https://doi.org/10.3892/or.7.6.1367
- Pages: 1367-1437
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Abstract
A bradykinetic form of parkinsonism, unresponsive to levo-dopa therapy developed in four patients two to eight weeks after completion of external beam irradiation (39.2 Gy to 59.4 Gy) of their intracranial neoplasm. In the absence of other causative factors, we relate the movement disorder to radiation-induced changes within the basal ganglia. At post-mortem examination one patient had putamenal gliosis and thickened vessels with loss of nigral neurons.
