J Korean Neurol Assoc.
1991 Dec;9(4):481-484.
A Case of Cervical cord Tumor with Focal Myokymic Discharge in Intrinsic Hand Muscles
- Affiliations
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- 1Department of Neurology, National Medical Center, Korea.
- 2Department of Neurology, College of Medicine, Yonsei University, Korea.
Abstract
- Myokymic discharge is a train of motor unit potentials that occur spontaneously, recur regularly, and sometimes may be associated with clinical myokymia. We report a 39-years-old male with progressive muscle weakness and atrophy of right upper extremity, who revealed focal myokymic discharges in the intrinsic hand muscles where no denervation was evident on EMG study. The cervical CTMM and MRI study showed a large cervical cord tumor at C3-C6 spine level. Postoperative pathological diagnosis of the tumor was anaplastic astrocytoma.
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