Progressive hemiparesis in frontal lobe degeneration.

Hemiparesis has rarely been observed in frontal lobe degeneration (FLD). We describe the clinical, neuropsychological and neuroimaging findings of a patient in whom a slowly evolving hemiparesis was the principal symptom of FLD, and of 2 demented patients in whom hemiparesis was an early and prominent symptom. The occurrence of central motor deficits in FLD is reviewed, and a synopsis of the differential diagnosis of hemiparesis in neurodegenerative diseases is given.