18F-AV1451 PET studies have also demonstrated a distinct pattern of tracer binding in non-AD tauopathies such as PSP, CBD, and microtubule associated tau (MAPT) mutation carriers (Smith et al., 2016, 2017b; Cho et al., 2017a; Passamonti et al., 2017; Schonhaut et al., 2017; Spina et al., 2017). Here, MAPT is linked to Alzheimer disease.