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A 58-year-old right-handed man presented with 3 months gradual worsening of twitching in his left hand. He had no remarkable medical or family history. Examination demonstrated continuous twitching in his left upper limb and dystonic posture of his left hand (videos 1 and 2 at Neurology.org). Superficial, deep, and cortical sensations were not disturbed in his left upper limb.
Acknowledgments
Acknowledgment: The authors thank Drs. Shigeru Nishizawa and Mayu Takahashi from the Department of Neurosurgery, University of Occupational and Environmental Health School of Medicine, for performing open brain biopsy.
Footnotes
Supplemental data at Neurology.org
Author contributions: Dr. Toyota: examination, diagnosis, and therapy of the patient, drafting/revising the manuscript. Dr. Sennari, Okada, Kawahara, and Tsukada: examination, diagnosis, and therapy of the patient. Dr. Simajiri: pathologic examination of the patient. Dr. Adachi: examination, diagnosis, and therapy of the patient, revising the manuscript, supervision of the article.
Study funding: No targeted funding reported.
Disclosure: The authors report no disclosures relevant to the manuscript. Go to Neurology.org for full disclosures.
- Received June 21, 2016.
- Accepted in final form October 17, 2016.
- © 2016 American Academy of Neurology
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