Table 3.

Abbreviated diagnostic criteria for commonly diagnosed neurodegenerative dementias

Diagnosis	Abbreviated Diagnostic Criteria
AD dementiaa	•Progressive, insidious decline with dementia-level impairment • Amnestic or nonamnestic presentation ○ Amnestic (most common): impairment in learning and episodic memory ○ Nonamnestic: language (particularly word finding), visuospatial, or executive function •Not better explained by another entity •Can increase certainty with imaging or CSF biomarkers
Behavioral variant frontotemporal dementiab	•Progressive cognitive and/or behavioral decline • Need 3 of the following: ○ Behavioral disinhibition ○ Apathy or inertia ○ Compulsive, ritualistic, or perseverative behavior ○ Hyperorality ○ Dysexecutive presentation with relative sparing of memory and visuospatial function •Can increase certainty with imaging biomarkers
DLBc	•Progressive cognitive decline with dementia-level impairment • Core clinical features: ○ Fluctuating cognition ○ Well-formed visual hallucinations ○ RBD ○ Parkinsonism •Supportive features: sensitivity to antipsychotics, postural instability, falls, dysautonomia, delusions, anxiety, apathy, depression •Probable DLB: 2 core features or 1 core feature plus 1 indicative biomarker •Possible DLB: 1 core feature or 1 indicative biomarker

Abbreviation: CSF, cerebrospinal fluid.

^aData from McKhann, G. M., Knopman D.S., Chertkow H., et al. The diagnosis of dementia due to Alzheimer's disease: recommendations from the National Institute on Aging-Alzheimer's Association workgroups on diagnostic guidelines for Alzheimer's disease. Alzheimers Dement. 2011 7(3): 263-269.

^bData from Rascovsky K., Hodges J.R., Knopman D., et al. Sensitivity of revised diagnostic criteria for the behavioural variant of frontotemporal dementia. Brain. 2011 134(Pt 9): 2456-2477.

^cData from McKeith I. G., Boeve B.F., Dickson D.W., et al. Diagnosis and management of dementia with Lewy bodies: Fourth consensus report of the DLB Consortium. Neurology. 2017 89(1): 88-100.