Case presentation:

• Female.
• 67 y.o.
• Hypertension,diabetes.
• Cognitiveimpairment2yearsofevolution
• Memory deficit, executive dysfunction, behaviour change, lack of inhibition, constructional apraxia
• Normal laboratory tests: T3/T4/TSH, VB12/folic acid, HIV, VDRL, ANA/ANCA.

Teaching points:

• Brain SPECT in the differential diagnosis of dementia.
• Dysfunctioanl patterns that distinguish AD from FTD.