Very early semantic dementia with progressive temporal lobe atrophy: an 8-year longitudinal study.

Background: Semantic dementia is a syndrome within the spectrum of frontotemporal lobar degenerations characterized by fluent progressive aphasia (particularly anomia) and loss of word meaning.

Objective: To report a unique case of very early semantic dementia with a slowly progressive course, allowing insights into the early natural history of this disorder.

Design: Case report.