ment with treatment of depression may be  useful in making the distinction. 
Comorbidity
Most individuals with Alzheimer’s disease are elderly and have multiple medical conditions
that can complicate diagnosis and influence th e clinical course. Major or mild NCD due to
Alzheimer’s disease commonly co-occurs with cerebrovascular disease, which contributes
to the clinical picture. When a comorbid condition contribute s to the NCD in an individual
with Alzheimer’s disease, then NCD due to multiple etiologies should be diagnosed.
Major or Mild Frontotemporal
Neurocognitive Disorder
Diagnostic Criteria  
A. The criteria are met for major or mild neurocognitive disorder.
B. The disturbance has insidious onset and gradual progression.
C. Either (1) or (2):
1. Behavioral variant:
a. Three or more of the following behavioral symptoms:
i. Behavioral disinhibition.
ii. Apathy or inertia.
iii. Loss of sympathy or empathy.
iv. Perseverative, stereotyped or compulsive/ritualistic behavior.
v. Hyperorality and dietary changes.
b. Prominent decline in social cognition and/or executive abilities.