SNCA and Lewy body dementia: Other common neurocognitive disorders leading to dementia include frontotemporal lobar degeneration (FTLD), mostly pathologically characterized by the accumulation of TAR DNA‐binding protein 43 (TDP‐43) or the microtubule‐associated protein tau,3 and dementia with Lewy bodies (DLB), pathologically hallmarked by alpha‐synuclein inclusions in neurons yet often presented with comorbid AD pathology.4