Frontotemporal dementia and primary progressive aphasia, a review

Figures & data

Table 1 Variants of frontotemporal dementia and their clinical features

Characteristic	Behavioral variant FTD	Progressive non-fluent aphasia	Semantic dementia	Logopenic progressive aphasia
Behavior	Aberrant	Normal, early	Normal, early	Normal, early
Fluency	Fluent (early)	Non-fluent	Fluent	Fluent
Naming	Normal (early)	Some anomia	Some anomia	Anomia
Repetition	Normal	Non-fluent	Fluent	Fluent
Comprehension	Normal (early)	Intact for simple items	Impaired, even at single-word level	Intact for simple items
Reading	Normal	Intact for short items	Surface alexia	Intact for simple items

Abbreviation: FTD, frontotemporal dementia.

Figure 1 Personal patient with progressive non-fluent aphasia.

Notes: MRI coronal section shows focal left temporal atrophy (A). PET shows left frontotemporal hypometabolism (B).
Abbreviations: MRI, magnetic resonance imaging; PET, positron emission tomography.