Writer’s cramp in a 22-year-old woman, which developed at 6 years of age in her right hand. After switching to her left hand for writing, dystonia spread to the left arm. Over several years, the dystonia became present with other tasks and was accompanied by dystonic tremor; however, it remained bibrachial with no spread to any other body region and no further worsening.
Christine Klein, MD
CONTINUUM: Lifelong Learning in Neurology. 19(5, Movement Disorders):1225-1241, October 2013