Article Text

Unusual presentation of more common disease/injury
Parkinsonism with organophosphate poisoning
  1. Kiyotaka Nakamagoe1,
  2. Masahiko Watanabe1,
  3. Tohoru Takeda2,
  4. Taro Mizutani3,
  5. Akira Tamaoka1
  1. 1
    Department of Neurology, Institute of Clinical Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8575, Japan
  2. 2
    Allied Health Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara-shi, Kanagawa, 228-8555, Japan
  3. 3
    Department of Critical Care Medicine, Institute of Clinical Medicine, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8575, Japan
  1. Kiyotaka Nakamagoe, Nakamagoek{at}md.tsukuba.ac.jp

Summary

Parkinsonism is a primary neurotoxic manifestation of organophosphate pesticide intoxication. We report here the case of a 67-year-old man who developed acute parkinsonism with tremors and rigidity following exposure to fenitrothion, an organophosphate pesticide. His parkinsonism disappeared, and 2 months later he was able to walk alone without antiparkinsonian drug treatment. To identify particular lesions in the brain, Z score images were obtained from SPECT (single photon emission computed tomography) scans of the patient during the acute poisoning and a follow-up scan performed 2 months later. We indicate that reversible parkinsonism correlated with putaminal hyperperfusion as observed in the Z score images obtained during the acute event; this condition resolved later in concert with resolution of the clinical parkinsonism. We believe that the SPECT scan Z score images in this study are an important find in elucidating parkinsonism manifestations due to organophosphate poisoning.

View Full Text

Statistics from Altmetric.com

Footnotes

  • Competing interests: none.

  • Patient consent: Patient/guardian consent was obtained for publication

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.