Cross-sectional (a, b) and longitudinal (c, d) atrophy patterns in the MTL in patients with svPPA and AD. Cross-sectional atrophy is expressed as percentage volume loss compared to the healthy controls.
svPPA=semantic variant Primary Progressive Aphasia; AD=Alzheimer’s disease; CA=cornu ammonis; DG=dentate gyrus; SUB=subiculum; ERC=entorhinal cortex; BA=Brodmann area; PHC=parahippocampal cortex