Hello @Pipeth
The symptoms described in the FTD factsheet occur because of the part of the brain (frontal lobe) that is damaged. You can get similar symptoms if there is damage to this part of the brain from other things too, eg behavioural variant Alzheimers, or Vascular dementia that affects the frontal lobe. A Cavernoma (as Im sure you know) is extremely rare and if its in the frontal lobe its not surprising that the majority of the symptoms come from this area.
The symptoms described in the FTD factsheet occur because of the part of the brain (frontal lobe) that is damaged. You can get similar symptoms if there is damage to this part of the brain from other things too, eg behavioural variant Alzheimers, or Vascular dementia that affects the frontal lobe. A Cavernoma (as Im sure you know) is extremely rare and if its in the frontal lobe its not surprising that the majority of the symptoms come from this area.