Cerebral aneurysm is a common disease with a high prevalence and can cause a catastrophic subarachnoid hemorrhage. To elucidate the molecular mechanism of the formation and progression of cerebral aneurysms, gene expression profiling was performed in experimentally induced rat cerebral aneurysms. The intima and media of cerebral arterial walls in rats with or without aneurysm induction were dis...

A previously healthy 15-month-old girl became pale and lethargic. CT showed subarachnoid hemorrhage. Cerebral angiography showed a 5-mm aneurysm in the M1 segment of the left middle cerebral artery (Fig. 1 A). The anterior cerebral artery was not visualized on the left carotid artery angiogram. Both anterior cerebral arteries filled from the right carotid injection. An additional vessel origina...

A 21-year-old woman presented with an unruptured large intracavernous aneurysm, which was spontaneously revascularized via unusual collateral pathways a short time after extracranial-intracranial bypass and surgical ligation of the proximal internal carotid artery. The patient had been treated for a large basilar trunk aneurysm with intraaneurysmal embolization using Guglielmi detachable coils,...

The occurrence of familial cerebral aneurysms lends support to the importance of congenital factors in their pathogenesis. The information on the subject is, however, still meagre, there being less than 20 reports in literature. Earlier literature mentions the occurrence of cerebrovascular accidents in members of the same family with polycystic kidneys (Dunger, 1904). Tonnis and Lange-Cosack (1...

BACKGROUND AND PURPOSE We report the first case of traumatic aneurysm of the supraclinoid internal carotid artery (ICA), which we speculate may have developed or grown after traumatic occlusion of the ipsilateral cervical ICA. CASE DESCRIPTION A 26-year-old man presented with severe traumatic subarachnoid hemorrhage (SAH) and occlusion of the right cervical ICA after a motor vehicle accident....

INTRODUCTION This case highlights the potential importance of new-onset headache, even in the absence of other worrisome features, in a patient with a cerebral aneurysm. CASE PRESENTATION A 61-year-old Caucasian woman presented with nonspecific insidious onset of headache, a superior cerebellar artery aneurysm and cerebrospinal fluid lymphocytosis. She had a subarachnoid hemorrhage 21 days la...

We present a 33-year-old female who had a ruptured aneurysm at the trifurcation of the right middle cerebral artery accompanied by coarctation of the aorta. The aneurysm was successfully clipped 15 hours after the attack of subarachnoid hemorrhage and approximately 3 months later the coarctation was surgically treated. Many authors reported that the incidence of cerebral aneurysm was higher in ...

Distal anterior cerebral artery aneurysms are infrequent. The most common location is at the bifurcation of the pericallosal and callosomarginal arteries. Cerebral artery anomalies can sometimes, at least partially, explain aneurysm formation in less common locations in relation to hemodynamic stress caused on the vascular wall. We report a very rare case of subarachnoid hemorrhage due to a rup...

The accessory middle cerebral artery can provide collateral blood supply in moyamoya disease. We report a case of unilateral moyamoya disease which demonstrates the anatomy of the right accessory middle cerebral artery and a ruptured peripheral aneurysm on the artery. Our patient was a 56-year-old woman who initially suffered from headache and lethargy. Right caudate nucleus hemorrhage with int...