Fig. 3

Neurodegenerative features on T1 MRI. Transverse (a, c, e) and coronal (b, d, f) representative T1-weighted volumetric MRI scans in a control, a posterior cortical atrophy (PCA) and a typical Alzheimer’s disease (tAD) case (left hemisphere is shown on the right and vice versa). The PCA case shows predominant parietal-occipital atrophy (c) and relatively preserved hippocampal volume (d) while the tAD case shows evidence of more widespread neocortical atrophy, although with relatively preserved occipital volume (e) and more extensive hippocampal volume loss (f)