PT - JOURNAL ARTICLE AU - Steven Inbody AU - Joseph Jankovic TI - Hyperkinetic mutism AID - 10.1212/WNL.36.6.825 DP - 1986 Jun 01 TA - Neurology PG - 825--825 VI - 36 IP - 6 4099 - http://n.neurology.org/content/36/6/825.short 4100 - http://n.neurology.org/content/36/6/825.full SO - Neurology1986 Jun 01; 36 AB - We studied a 70-year-old woman with a unique combination of hyperkinesia and mutism. These findings differed from akinetic mutism because there was continuous bilateral ballism and dystonia—hence the term “hyperkinetic mutism.” CT demonstrated bilateral calcifications in the basal ganglia, and MRI indicated bilateral watershed infarcts. Different dopaminergic mechanisms may underlie the hyperkinesia and mutism.