Table 2.

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

	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

MRI magnetic resonance imaging, FDG-PET fluorodeoxyglucose-positron emission tomography