We herein report the case of a 38-year-old man who developed parkinsonism 4 years after ingesting glyphosate. The patient presented with right-sided bradykinesia and cogwheel rigidity without autonomic symptoms. Magnetic resonance imaging of the brain and [123I]-metaiodobenzylguanidine myocardial scintigraphy were normal. A drastic response to levodopa and the presence of levodopa-induced dyskinesia without strong non-motor symptoms were seen in this patient. We considered that young-onset atypical parkinsonism was associated with a history of sublethal glyphosate ingestion. Epidemiologic investigations have shown that exposure to pesticides is a risk factor for Parkinson’s disease (PD). Our findings support the notion that glyphosate exposure might be related to the onset of PD.
CITATION STYLE
Eriguchi, M., Iida, K., Ikeda, S., Osoegawa, M., Nishioka, K., Hattori, N., … Hara, H. (2019). Parkinsonism relating to intoxication with glyphosate. Internal Medicine, 58(13), 1935–1938. https://doi.org/10.2169/internalmedicine.2028-18
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