The frequency of psychotic symptoms (e.g., delusions and hallucinations) in neuropathologically confirmed FTLD ranges from 10% to 32%, with differences based on underlying neuropathology subtype, genetic variant, and clinical syndrome.77,78 Recently, Naasan et al.79 examined patterns of NPS in a large cohort of patients with autopsy-confirmed neurodegenerative pathology, including FTLD-TDP inclusions, FTLD-tau (including Pick’s disease, PSP, CBS), AD, and Lewy body disease. The gene discussed is MAPT; the disease is frontotemporal dementia.