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  - Myelopathy: Diff Dx:
  - Myopathic Disorders
  - Stroke / TIA;
  - Multiple Sclerosis
  - Amyotrophic Lateral Sclerosis
  - Thoracic Outlet Syndrome;
  - Pancoast Tumors
  - Reflex Sympathetic Dystrophy
  - Brachial Neuritis (upper & lower motor neurons, sensation is Nl);
  - Spinal Cord Tumor
  - Syringomyelia
  - Subacute Combined Degeneration
  - Cervical Disc Herniation
  - Cerebral hemisphere lesion
  - Low pressure hydrocephalus
  - Herpes Zoster;
  - Subacromial Impingement;
  - Thoracic Outlet Syndrome