P1‐106: Anxiety is related to Alzheimer's disease markers in cerebrospinal fluid of subjects with mild cognitive impairment

in both anterior temporal lobes while FDG PET scan showed posterior hypofixation atypical for AD. The CSF of tau-protein (600 pg/ml), phosphorylated tau (87 pg/ml) were increased, whereas the concentration of beta-amyloid protein (Abeta1-42) was decreased (480 pg/ml) according to our cut-off (Dumurgier et al.) suggesting AD CSF profile. Conclusions: Among different clinical AD phenotype, FTD clinical presentation must not be misdiagnosed. CSF biomarkers are helpful to diagnose these patients, establish an accurate diagnosis and introduce a specific treatment.