A 56-year-old woman presented with subjective right-sided numbness and paresthesias in the upper and lower extremities, along with fatigue and dizziness. She said that her symptoms had begun as numbness and tingling in the fingertips of her right hand. This sensation had progressively worsened, slowly migrating up the right arm to her right shoulder, with further progression to shooting sensations down her right leg. The symptoms had been associated with extreme fatigue and dizziness upon physical exertion. She stated that aside from walking to the restroom, she had not been able to get out of bed and perform her activities of daily living. She denied experiencing any changes in her ability to move and to use her limbs. She denied having had fevers, cough, chest pain, palpitations, or weight change, and she denied having recently traveled.
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