Evidence to date indicates that the currently available tau tracers consistently bind to the paired helical filaments of AD‐type tau, with less reliable binding in non‐AD tauopathies, such that tau‐PET is considered a promising tool for the differential diagnosis of various tauopathies and the identification of atypical AD phenotypes that can be difficult to diagnose.114. The gene discussed is MAPT; the disease is Alzheimer disease.