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A 57-year-old male presented with right amaurosis fugax and left transient ischemic attack caused by stenosis of the intracranial segment of the right internal carotid artery (ICA). Percutaneous transluminal angioplasty with stenting was successfully performed to dilate the stenosis. However, serial angiography revealed the development of a large pseudoaneurysm in the cervical ICA, probably as a result of carotid wall injury caused by the guiding catheter during the procedures. The patient underwent a second endovascular angioplasty. A Palmaz stent was placed across the aneurysm neck to stabilize the carotid wall. Guglielmi detachable coils were then inserted into the aneurysm cavity through the stent struts to successfully obliterate the aneurysm. Both the angiographical results and the patient's outcome were favorable. Stent-supported coil embolization is an effective and safe technique for medically refractory pseudoaneurysms, and may be a useful alternative to direct surgery.

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Chondromas arising from the dura mater are rare intracranial tumors. We describe a case of intracranial chondroma originating from the durra mater of the convexity, mimicking a meningioma. The neuroradiological and surgical findings are described. The diagnostic clues for the differential diagnosis between chondromas and meningiomas are discussed and reviewed.

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DCI was less frequently observed in the coiling group, and clinical outcomes were also superior in the coiling group, especially for patients with severe SAH. The results showed a significant correlation between DCI and hydrocephalus.

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