Published online by Cambridge University Press: 03 November 2020
This 60-year-old woman presented with a 6-year history of bilateral hand tremor and progressive gait impairment. She first noticed bilateral hand tremor when holding objects, followed by balance impairment, slow walking with foot dragging, and a tendency to fall forward. Within four years, she required a wheelchair for ambulation. She endorsed initial short-term memory affecting her ability to process information, which accelerated in the last year. Two years prior to the onset of her symptoms she had received chemotherapy (carboplatin and etoposide) with prophylactic whole-brain radiation as treatment for lung cancer.