Drs Josephs, Matsumoto, and Ahlskog provide an excellent characterization of a Parkinson disease subtype that is often discussed anecdotally, but generally with little rigor.1 I generally agree with their analysis and find interesting their finding of a high proportion of affected relatives. Yet, I would like to add 2 notes of caution, based on my admittedly anecdotal experience with such patients.
Russell DS. Benign Tremulous Parkinsonism. Arch Neurol. 2006;63(9):1346. doi:10.1001/archneur.63.9.1346-a
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