C9 and frontotemporal dementia: A group of patients with C9ORF72 expansion (15 bvFTD, 11 FTD-ALS and 5 ALS) wascompared against 48 sporadic non-carrier patients (48 bvFTD, 19 FTD-ALS and 6ALS).27 The authors foundthat bvFTD-C9 patients had more parietal and bilateral thalamic atrophy and lessmedial frontal atrophy compared to sporadic bvFTD patients.