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DAT imaging in drug-induced and psychogenic parkinsonism

✍ Scribed by Eduardo Tolosa; Miguel Coelho; Marisol Gallardo

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
68 KB
Volume
18
Category
Article
ISSN
0885-3185

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✦ Synopsis

Parkinson's syndrome (PS) is frequently encountered in disorders associated with prominent degeneration of the nigrostriatal pathway as in Parkinson's disease, multisystem atrophy, and progressive supranuclear palsy (presynaptic PS). Drug-induced parkinsonism, a common, underdiagnosed health problem and psychogenic parkinsonism are causes of Parkinson's syndrome which, evidence suggests, occurs without degeneration of nigrostriatal structures. We review clinical features and results of DAT imaging in drug-induced parkin-sonism and psychogenic parkinsonism. These two conditions normally give normal striatal DAT imaging results; an abnormal result in either case could exclude both conditions, corroborating a diagnosis of organic parkinsonism in uncertain cases.

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