The patient is a 48-year-old woman who was in her usual state of good health when she experienced nausea and vomiting after being emotionally upset. After 3 hours of nausea and vomiting she had the sudden onset of numbness of her left arm which progressed to include her left leg and the left side of her face.

She was taken to the Emergency Room. Upon arrival she complained that she had double vision especially when she looked to the right. When she covered her right eye, the most peripheral image (the ghost image) would disappear. She also noticed that when she looked in the mirror the right side of her face didn’t move.

Over the next 2 months, the double vision resolved, but the rest of her complaints have persisted.