Among the remaining seven patients, two patients were determined as having had Alzheimer’s disease (clinical diagnosis: RS/CBS, one patient; CBS, one patient) and one patient each as having had Lewy body disease (clinical diagnosis: CBS), frontotemporal lobar degeneration with TAR DNA-binding protein of 43 kDa proteinopathy (FTLD-TDP; clinical diagnosis: CBS), FTLD-TDP type B + Lewy body dementia, Kii-parkinsonism-dementia complex (clinical diagnosis: CBS), and FTLD (clinical diagnosis: not applicable for RS/CBS). The gene discussed is TARDBP; the disease is Alzheimer disease.