Frontotemporal dementia (FTD) and multi-infarct dementia are both rare forms
FTD is rare. It affects the front and sides of the brain. FTD progress quickly and tends to occur in younger people.
At first, symptoms may involve changes in judgment, personality, social skills, and an inability to plan. If you have FDT, you may begin to make off-color or rude remarks. You might also make an unwise decision about personal matters or finances. You have feelings of being disconnected or indifference about the things around you. There may be times when you have manic excitement. With FTD you might have a strong urge to eat, which causes weight gain.
Multi-infarct Dementia is vascular dementia caused by multiple small strokes in the different parts of your brain. This type of dementia also includes Binswanger’s disease and cerebral autosomal dominant arteriopathy with subcortical infarct and leukoencephalopathy (CADASIL).