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Table 2 Comparison of behavioral variant frontotemporal dementia (bvFTD) and phenocopy syndrome of FTD (phFTD)

From: Phenocopy syndrome of behavioral variant frontotemporal dementia: a systematic review

  bvFTD phFTD
Sex No sex predominance Male predominance
Family history for dementia Generally present Rare
Behavioral symptoms Frontal behavior Frontal behavior
Global cognitive efficiency Mild to severe impairment Generally preserved
Executive function Mild to severe impairment Normal to mild impairment
Episodic memory Moderate to severe impairment Normal
Activities of daily living Moderate to severe impairment No impairment
MRI Frontotemporal atrophy Normal to minimal changes
FDG-PET Frontotemporal hypometabolism Usually normal
  1. MRI magnetic resonance imaging, FDG-PET fluorodeoxyglucose-positron emission tomography