Cerebral arteriovenous malformation (AVM)
AVMs that occur in the coverings of the brain are called dural arteriovenous malformation.
Primary lobar hemorrhages (usually due to cerebral amyloid angiopathy) are typically seen in elderly. Younger patients may also develop lobar haemorrhages, but in such cases they usually have an underlying lesion (e.g. cerebral arteriovenous malformation).