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脑动脉扩张(CAE)是脑血管的一种不常见的病理性伸长和扭曲,通过脑血管造影和CT扫描很容易识别.通常椎基底动脉较多受累.某些病人可表现为颅神经受累,而另一些病人则有多数神经功能缺失.迄今,尚无基底动脉扩张(BAE)与直立性低血压(OH)关系的报道.本文报道1例继发于BAE后的蛛网膜下腔出血(SAH)和2例自主神经功能失调的病例.本组3例均为男性,年龄分别为60、64、62岁.例1表现为有关SAH的体征,其后有第Ⅵ对和第Ⅶ对颅神经麻痹.CT及动脉造影均证实为一大的BAE.无其它易引起出血的病变.出血位于小脑蚓旁池(Paravermian cistern)及邻近基底动脉处.CT扫描和临床相证实了BAE为出血源的假说.例2、例
Cerebral artery dilatation (CAE) is an uncommon pathological stretch and distortion of cerebrovascular that is easily identified by cerebral angiography and CT scans. Vertebrobasilar arteries are usually involved more often. Some patients may manifest as cranial nerve involvement , While others have most of the neurological deficits. To date, there is no report on the relationship between basilar artery dilatation (BAE) and orthostatic hypotension (OH). One case of subarachnoid hemorrhage secondary to BAE SAH) and 2 cases of autonomic nervous dysfunction in this group of 3 patients were male, the age was 60,64,62 years of age .Example 1 showed the signs of SAH, followed by the first VI and VII of the cranial Nerve paralysis.CT and arteriography confirmed a large BAE.No other lesions prone to hemorrhage.Hemorrhage is located in the paravermian cistern and the adjacent basilar artery.CT scan and clinical evidence confirmed the BAE as a source of bleeding Hypothesis Example 2, Example