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Photomicrograph showing neuronal density in substantia nigra

Low-power photomicrographs of substantia nigra. Note difference of neuronal density between the normal substantia nigra (left) and the patient with Parkinson disease (right). (Hematoxylin-eosin; x31.25)

Associated Disorders

  • Dementia with Lewy bodies
  • Essential tremor
  • REM sleep behavior disorder