Abstract
BackgroundWe report a rare case of an 18-year-old male with unilateral hand tremor who was finally diagnosed with Hirayama disease (HD).Case presentationAn 18-year-old male presented with unilateral polymyoclonus that aggravated with neck flexion. The patient did not complain of muscle weakness or muscle atrophy. The needle electromyography showed giant motor unit potentials in right cervical 7 and 8 innervated muscles. The cervical magnetic resonance imaging on supine and flexion state showed prominent forward effacement of posterior dural sac that was compatible with HD.ConclusionsHD usually presents with unilateral distal hand weakness, muscle atrophy and tremor. Although it is a benign and self-limiting disease, early diagnosis may lead to less clinical deterioration. Moreover, electromyography should be completed in the differentiation of young male patients who present with polymyoclonus without hand weakness or atrophy.
Highlights
We report a rare case of an 18-year-old male with unilateral hand tremor who was diagnosed with Hirayama disease (HD).Case presentation: An 18-year-old male presented with unilateral polymyoclonus that aggravated with neck flexion
HD usually presents with unilateral distal hand weakness, muscle atrophy and tremor
Electromyography should be completed in the differentiation of young male patients who present with polymyoclonus without hand weakness or atrophy
Summary
HD usually presents with unilateral distal hand weakness, muscle atrophy and tremor. It is a benign and self-limiting disease, early diagnosis may lead to less clinical deterioration. Electromyography should be completed in the differentiation of young male patients who present with polymyoclonus without hand weakness or atrophy
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