Subdural hematoma is a rare cause of parkinsonism. We present the case of a 78-year-old man with right-side dominant parkinsonism about 3 months after a minor head injury. MRI reveals a chronic subdural hematoma on the left side with mildly displaced midline structures. The parkinsonian features were almost completely disappeared after neurosurgical evacuation of the hematoma without any anti-parkinson drug.

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• Systematic Review of Post-Traumatic Parkinsonism, an Emerging Parkinsonian Disorder Among Survivors of Traumatic Brain Injury
  Catherine Rojvirat, Gabriel R. Arismendi, Erin Feinstein, Maynard Guzman, Bruce A. Citron, Vedad Delic
  Neurotrauma Reports.2024; 5(1): 37.     CrossRef
• Parkinsonism-like features following reconstructive cranioplasty
  Mayank Tyagi, Charu Mahajan, Indu Kapoor, Hemanshu Prabhakar
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• Chronic subdural hematoma-induced parkinsonism: A systematic review
  Achmad Fahmi, Heru Kustono, Komang Sena Adhistira, Heri Subianto, Budi Utomo, Agus Turchan
  Clinical Neurology and Neurosurgery.2021; 208: 106826.     CrossRef
• Secondary parkinsonism caused by chronic subdural hematomas owing to compressed cortex and a disturbed cortico–basal ganglia–thalamocortical circuit: illustrative case
  Masao Fukumura, Sho Murase, Yuzo Kuroda, Kazutomo Nakazawa, Yasufumi Gon
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Radicular myoclonus (RM) is a kind of peripheral myoclonus exclusively related with traumatic spinal root lesion. Here we describe a case with involuntary scapular movements as a possible manifestation of RM. A 37-year-old woman without any underlying disease developedinvoluntary movements of left shoulder two days after cervical trauma. On needle electromyographic recordings, the myoclonic jerky movements were found in left serratus anterior and rhomboid major muscles, and the duration of bursts ranged from 100 to 300 ms with the irregular frequency of 1–2 Hz. Electromyography studies showed accompanying left C5 radiculopathy. Treatment with clonazepm markedly improved involuntary scapular movements.