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J Emerg Trauma Shock. 2014 Apr;7(2):124-5. doi: 10.4103/0974-2700.130884.

Parkinsonism as late sequela of organophosphate intoxication.

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Department of Neurology, School of medicine, Catholic University of Daegu, Daegu, Korea.
Department of Radiology, School of medicine, Catholic University of Daegu, Daegu, Korea.


Delayed morphologic and metabolic change of organophosphate intoxication is rarely reported than those of acute episode. The patient was a 52-year-old woman who had a history of acute organophosphate intoxication, which paralyzed her for one week when she was 25 years old. She recovered slowly to near normal after one year. After 22 years of the acute episode, tremor developed in 2007 followed by bradykinesia, rigidity, and postural instabilities. Brain MRI showed linear atrophy in bilateral striatal area and multiple cysts in anterior caudate nucleus. F-18 fluorodeoxyglucose positron emission tomography revealed multiple hypometabolic areas in bilateral striatum, cerebellar hemisphere, and occipital area.


Cerebellum; F-18 positron-emission tomography; metabolism; organophsphate; parkinsonism; striatum

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