On the 30th day ischemic click here stroke recurred with a NIHSS score of 14 and MRI showed new infarction in the right hemisphere (Fig 1C). The patient had a prothrombin time-international

normalized ratio (PT-INR) of 2.17. Strong combination antithrombotic therapy with warfarin (PT-INR = 2.5-3.0) and cilostazol (200 mg) was introduced. At the two sites of damage, carotid duplex ultrasonography showed no new findings such as major flow velocity change, echo contrast change and thrombi, and TCD of the right MCA did not reveal any HITS. A left superficial temporal artery biopsy and a skin biopsy of the left axilla were performed. The artery biopsy indicated only a moderate thickness of the tunica intima, normal tunica media and tunica externa, and normal internal and external elastic lamina (Fig 4). The skin biopsy indicated normal elastic fiber and collagen fiber. There was no further recurrence and the patient was discharged with a NIHSS score of 6 on the 49th day. Dolichoectasia preferentially involves the intracranial vertebrobasilar arteries.1982 Intracranial carotid and MCA dilation occur less often,2003, 1998 and dilation of the ECA is particularly uncommon.

Mourgela et al2008 reported a case of dolichoectasia of the bilateral extracranial carotid and vertebral arteries with ischemic attacks, but without permanent neurological deficits or proof of imaging. In our case, it was clear that right common carotid dolichoectasia caused repeated embolism and that extracranial dolichoectasia caused ischemic stroke. ECA aneurysms are moderate rare, mTOR inhibitor and in atherosclerotic aneurysms, 65% (15/23) patients have ipsilateral neurologic symptoms.2000, 1994 ECA pseudoaneurysms, which similar to dolichoectasia, cause turbulent flow to form intraluminal thrombi can cause an ischemic cerebral attack.2008, In ECA pseudoaneurysms, a defect in the tunica intima and media raises the pouch which partially communicates

with the arterial lumen. In contrast, a true aneurysm is composed of the dilatation of three normal layers MCE公司 of the artery, especially dolichoectasia has the dilatation with long diameter. From the pathogenic perspective, dolichoectasia is a dilatative arteriopathy that is because of deficiencies in the muscularis and internal elastic lamina, Marfan syndrome, Ehlers-Danlos syndrome, pseudoxanthoma elasticum, and other less well-defined connective tissue disorders.2005 In our case, the thick plaque in the lumen, aging, and risk factors for arteriosclerosis indicated atheromatous degeneration, but dilation of the CCA adventitia to 39 mm was an extraordinary change. To investigate this abnormal dilation, anamnesis of abdominal aortic aneurysm, thoracic aorta enlargement, family history, artery and skin biopsies were performed based on a suspicion of connective tissue disease.