Regional atrophy patterns in neurodegenerative dementias

Dementia syndrome	Atrophy pattern
Alzheimer dementia	Temporal (including hippocampal), parietal atrophy, sparing sensorimotor strip and occiput
Behavioral variant frontotemporal dementia	Prefrontal, anterior temporal
Huntington disease	Head of the caudate
Nonfluent variant primary progressive aphasia	Dominant perisylvian
Posterior cortical atrophy	Bilateral superior parietal-occipital junction
Progressive supranuclear palsy	Diminished midbrain anteroposterior diameter
Semantic variant primary progressive aphasia	Anterior inferior temporal lobes

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