We recently experienced a case which had an aneurysm with Moyamoya disease. He developed by a sudden severe headach, vomitting and conscious disturbance. CT was performed, and it revealed hematoma having a diameter of 1. 0 cm adjacent to the anterior horn of the lateral ventricle in the head of the left caudate nucleus, and both lateral ventricles, 3rd ventricle, and 4th ventricle were found to...

The subtemporal approach with division of the posterior communicating artery (PcomA) is described for treating aneurysms of the basilar tip. When the ipsilateral posterior cerebral artery (PCA) interferes with visibility and manipulation around the aneurysm neck and the artery is tethered by the PcomA and not mobilized, the PcomA can be divided near the junction with the PCA. The procedure perm...

Cardiac myxoma is the most common primary tumor of the heart, located mainly in the left atrium. Cerebral embolization or intracranial aneurysm formation as a consequence of left atrial myxomas has been well documented, whereas myxoma embolization causing the combination of cerebral infarction and intracranial myxomatous aneurysm is rare. We report herein, a 67-year-old female with a cardiac my...

= A b s t rac t =Two Cases of ruptured cerebral aneurysms associated with polycystic kidney diseases (PKD) are presented. Case 1 is a 60-year-old woman diagnosed as PKD after rupture of an anterior communicating artery aneurysm. Eleven days after successful aneurysmal clipping, she died of sudden massive intra-abdominal bleeding from kidney rupture. Case 2 is a 60-year-old man diagnosed as aneu...

To elucidate the role of the internal elastic lamina in the development of cerebral aneurysm, the bifurcation of the anterior cerebral artery and olfactory artery was histologically studied in control and experimental rats treated with unilateral carotid ligation and renal hypertension. Various stages of aneurysm formation were compared, and it was found that early aneurysmal changes were alway...

We report here on a rare case of a ruptured basilar tip aneurysm that was successfully treated with coil embolization in the bilateral cervical internal carotid artery (ICA) occlusions with abnormal vascular networks from the posterior circulation. A 43-year old man with a familial history of moyamoya disease presented with subarachnoid hemorrhage. Digital subtraction angiography demonstrated c...

BACKGROUND AND PURPOSE Distally located cerebral aneurysms are difficult to treat with preservation of the parent vessel. We report the angiographic results and clinical outcome for 27 patients with peripheral cerebral aneurysms. METHODS From January 2000 to June 2005, 27 patients, 13 female and 14 male, presented to our institution with peripheral intracranial aneurysms and were treated endo...

OBJECTIVE Macrophages play a critical role in cerebral aneurysm formation and rupture. The purpose of this study is to demonstrate the feasibility and optimal parameters of imaging macrophages within human cerebral aneurysm wall using ferumoxytol-enhanced MRI. METHODS AND RESULTS Nineteen unruptured aneurysms in 11 patients were imaged using T2*-GE-MRI sequence. Two protocols were used. Proto...

BACKGROUND With the decrease in the number of cerebral aneurysms treated surgically and the increase of complexity of those treated surgically, there is a need for simulation-based tools to teach future neurosurgeons the operative techniques of aneurysm clipping. OBJECTIVE To develop and evaluate the usefulness of a new haptic-based virtual reality simulator in the training of neurosurgical r...

Little is known about estrogen receptors and their signaling mechanisms in human cerebral vascular endothelial cells, which is important for understanding cerebral aneurysm pathogenesis in menopausal and postmenopausal women. Estrogen receptor beta (ERβ) and G-protein-coupled receptor 1 (GPER1) were immunocytochemically identified in human cerebral vascular endothelial cells (HCVECs). ERβ was m...