BACKGROUND We performed a follow-up study of an acute organotin poisoning case on the neurological sequelae that remained after 3 years since diagnosis. CASE In the previous study, a 43-year-old male was reported for acute organotin poisoning. After 3 years, the neurological sequelae were studied using neurological examination, cognitive tests, neurobehavioral tests (by CAYSYS 2000(TM)), brain magnetic resonance imaging (MRI), and 18F-fluorodeoxyglucose (18F-FDG) PET/CT. Upon neurological examination and other tests, orientation was improved compared to that 3 years before, but cerebellar ataxia, dysmetria and dysdiadochokinesia remained the same, with little change. Brain MRI showed cerebellar atrophy. 18F-FDG PET/CT revealed mildly decreased metabolic activity in the pons and in both cerebellar hemispheres. DISCUSSION This is the first brain MRI study on cerebellar atrophy caused by organotin poisoning. Cerebellar ataxia was confirmed by decreased metabolic activity in 18F-FDG PET/CT.
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