Cognitive impairment more than 2 years of evolution 99mTc-ECD scan.

Case presentation:

• Female.
• 49 y.o.
• No vascular risk factors.
• Father died of dementia. Older brother with advanced dementia catalogued as vascular (Binswanger’sdisease).
• Cognitive impairment more than 2 years of evolution.
• Neuropsychological study:Dementia. Probably Alzheimer’s Disease type.
• No other neurological symptoms.

Teaching points:

• Brain SPECT in the diagnosis of dementia.
• Brain SPECT in early onset dementia- familial AD.