Fig. 1. Atrophy maps in PPA subtypes from Mesulam et al.28 PPA-G, PPA-L, PPA-S- agrammatic, logopenic, and semantic variants of primary progressive aphasia. ATL: anterior temporal lobe, IFG: inferior frontal gyrus, STG: superior temporal gyrus, TPJ: temporoparietal junction. Adapted from Mesulam et al. Arch Neurol 2009;66:1545-1551.28.
