When the artery which is present outside the skull blocked it may develop the extra cranial vascular disease. This may lead to the artery to burs and a stroke which is known as an aneurysm. To consult the best specialist in Islamabad, Karachi, Lahore or any main city of Pakistan visit Marham. Causes: The extracranial vascular disease is mostly caused by atherosclerosis. Symptoms: Usually, it represents no significant symptoms until the person has a stroke. Treatment: Its treatment is based on following methods Lifestyle changes Medications: Carotid endarterectomy Angioplasty and stenting