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首页> 外文期刊>Journal of clinical neuroscience: official journal of the Neurosurgical Society of Australasia >Ruptured aneurysm at the cortical segment of the posterior inferior cerebellar artery.
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Ruptured aneurysm at the cortical segment of the posterior inferior cerebellar artery.

机译：小脑后动脉皮质段破裂的动脉瘤。

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摘要

We report a rare case of a ruptured aneurysm at the cortical segment of the posterior inferior cerebellar artery (PICA) with a branching complex that was feeding the bilateral cerebellar hemispheres. A 70-year-old woman suddenly sustained a severe headache and vomiting. CT scan revealed diffuse subarachnoid haemorrhage with fourth and lateral ventricular haemorrhage, which suggested typical aneurysmal bleeding in the posterior circulation. No aneurysm was detected on the initial angiogram. This angiogram also showed no significant evidence of other lesions that could be the origin of the bleeding. A third angiogram was performed 15 days from the ictus and revealed a distal PICA saccular aneurysm. The aneurysm was located at the cortical segment, and the artery was branching to both of the cerebellar hemispheres. This could be more clearly visualised during the ensuing operation, and neck clipping was performed. The patient recovered without neurological deterioration. Subarachnoid haemorrhage with blood in the fourth ventricle may indicate a ruptured aneurysm on the distal segment of the PICA with a branching variation, feeding the contra-lateral hemisphere, which is rarely located in this position.
机译：我们报告了罕见的病例，在小脑后下动脉（PICA）的皮质部分动脉瘤破裂，伴有分支复合物，正在为双侧小脑半球提供营养。一名70岁的妇女突然出现剧烈头痛和呕吐。 CT扫描显示有蛛网膜下腔弥漫性出血，伴有第四侧脑室出血和侧脑室出血，提示后循环中典型的动脉瘤性出血。在初始血管造影上未检测到动脉瘤。该血管造影也没有显示可能是出血原因的其他病变的明显证据。距发作15天后进行了第三次血管造影，显示远端PICA囊状动脉瘤。动脉瘤位于皮层段，动脉分支到两个小脑半球。在随后的手术过程中可以更清楚地看到这一点，并进行了颈部夹紧。病人康复无神经功能恶化。蛛网膜下腔出血在第四脑室可能表明PICA远端节段的动脉瘤破裂，并出现分支分支，为对侧半球提供了营养，该部位很少位于该位置。

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