Carlos Pérez-López, María José AbenzaAbildúa, Blanca Fuentes-Gimeno and Cristina Álvarez-Escolá
Intracranial arterial dolichoectasia is a dilation of the elastic tissue of the middle layer of the cranial arteries. These vessels can be seen to be dilated, elongated, and sometimes tortuous. This type of arteriopathy is present in 12% of stroke patients, and affects the vertebrobasilar territory in 80% of cases, and can cause ischemia or hemorrhage (coexistence of aneurysm and rupture bleeding).