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Lhermitte's Sign

March 3rd, 2023


  • How to Perform

  • Flex the patient's neck and ask them about any symptoms in their back, arms or legs.
  • Interpretation

  • Lhermitte's sign is present if there is an electric shock-like sensation through the back and down the upper / lower limbs.
  • Significance

  • Classically a sign of multiple sclerosis, though can occur with other myelopathies, chemotherapy or radiotherapy.
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