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首页> 外文期刊>Pediatric neurology >Cyst of the third ventricle as an unusual cause of acquired hydrocephalus.
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Cyst of the third ventricle as an unusual cause of acquired hydrocephalus.

机译：第三脑室囊肿是获得性脑积水的异常原因。

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摘要

Cysts of the third ventricle are rare congenital suprasellar malformations of arachnoidal, endodermal, or neuroepithelial origin. Depending on their size and location, they can cause space-occupying intracranial lesions and hydrocephalus occlusus by obstruction of the aqueduct or foramen of Monro. They can be missed on routine computer tomography and magnetic resonance imaging. A 2-year-old boy presented signs of intracranial pressure. Initial magnetic resonance imaging revealed a triventricular internal hydrocephalus with no visible etiologic lesion. An extended investigation with the constructive interference in steady state-technique showed a mobile cystic cerebrospinal fluid-intense lesion within the third ventricle, causing transient occlusion of the foramen of Monro. A suprasellar cyst of the third ventricle is an important differential diagnosis in apparently "idiopathic" internal hydrocephalus. In such cases, magnetic resonance imaging using the constructive interference in steady state-technique with a slice thickness of 1 mm is the method of choice for detecting intraventricular cysts. Neurosurgical fenestration and/or resection of the cyst by neuroendoscopy can resolve cerebrospinal fluid circulation disturbances and seems to be superior to a shunt.
机译：第三脑室的囊肿是蛛网膜，内胚层或神经上皮起源的罕见先天性鞍上畸形。根据它们的大小和位置，它们可以通过阻塞Monro的导水管或孔来引起占位性颅内病变和脑积水。在常规计算机断层扫描和磁共振成像中可能会错过它们。一个2岁男孩表现出颅内压的迹象。最初的磁共振成像显示三心室内积水，没有可见的病因病变。一项对稳态技术具有建设性干扰的扩展研究表明，在第三脑室内存在活动性囊性脑脊髓液强烈病变，导致门罗孔暂时性闭塞。第三脑室上囊肿是明显“特发性”内部脑积水的重要鉴别诊断。在这种情况下，使用稳定干涉技术以切片厚度为1 mm的稳定状态进行磁共振成像是检测脑室内囊肿的首选方法。通过神经内窥镜进行神经外科开窗术和/或切除囊肿可以解决脑脊髓液循环障碍，并且似乎优于分流术。

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