A<unk> , also referred to as an arteriovenous hemangioma is the dilation of a group of blood vessels due to congenital malformations with arterio venous (AV) shunting.<unk> " means resembling a varix. They are most common on the head or neck.<unk> s appear as nodules or papules. Histologically, they are composed of both thick- and thin-walled blood vessels.
Cirsoid aneurysm
Charcot–Bouchard aneurysm
Duret haemorrhages
Pseudoaneurysm
Capillary aneurysms
Carotid artery dissection
Cerebral arteriovenous malformation
Infectious intracranial aneurysm