Abstract
A 77-year-old woman who was diagnosed with Parkinson disease at 51 years of age presented with a 4-year history of intermittent jaw tremor. This was present at rest and declined in amplitude during voluntary movements. Tremor reappeared after the patient bit a tongue depressor continuously for 10 seconds (video on the Neurology ® Web site at [Neurology.org][1]). “Re-emergent tremor” is a postural hand tremor that appears after some delay while maintaining a posture and is similar to the classic resting tremor of Parkinson disease.1 Re-emergent jaw tremor may represent an additional type of tremor characteristic of Parkinson disease. [1]: http://neurology.org/lookup/doi/10.1212/WNL.0000000000002189
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