脑室内海绵状血管瘤的影像学表现

发布时间：2018-01-29 20:45

本文关键词： 脑室海绵状血管瘤影像学特点诊断　出处：《临床放射学杂志》2017年10期 　论文类型：期刊论文

【摘要】：目的探讨脑室内海绵状血管瘤的影像学特征及鉴别诊断,以提高对该疾病的认识。方法回顾性分析11例经病理证实的脑室内海绵状血管瘤的临床及影像学资料。2例行CT平扫及MRI增强扫描,9例行MRI增强扫描。结果位于侧脑室10例,其中近孟氏孔处5例,侧脑室体部1例,侧脑室后角区4例;位于第三脑室1例。病灶多呈结节状或类圆形,边界清晰,仅1例病灶周围见轻度水肿。CT平扫2例均呈稍高密度,1例见点状钙化;MR T_1WI呈等低信号(8例)或高低混杂信号(3例),其内部或边缘可见小片状稍高信号;T_2WI均为高低混杂信号,可伴小囊状液平(3例)或低信号环(3例)。DWI呈低信号(4例)或高低混杂信号(7例)。增强扫描见边缘点状轻度强化(8例)或明显强化(3例)。结论脑室内海绵状血管瘤以侧脑室多见,CT多为稍高密度,MRI以混杂信号多见,当T_2WI示小囊状液平、低信号环及增强扫描边缘结节状强化时,可作为脑室内海绵状血管瘤的诊断依据。
[Abstract]:Objective to investigate the imaging features and differential diagnosis of intracerebroventricular cavernous hemangioma. Methods the clinical and imaging data of 11 cases of pathologically proved intracerebroventricular cavernous hemangioma were analyzed retrospectively. Ct plain scan and MRI enhanced scan were performed in 2 cases. Results 10 cases were located in the lateral ventricle, 5 cases were located near the Mon's foramen, 1 case was in the lateral ventricle body, 4 cases were in the posterior horn region of the lateral ventricle. One case was located in the third ventricle. Most of the lesions were nodular or round, and the boundary was clear. Only 1 case showed mild edema around the lesion. 2 cases showed slight hyperdense calcification in 2 cases. Mr T 1WI showed iso-low signal intensity (n = 8) or high / low mixed signal intensity (n = 3). All of them showed mixed signal on T _ 2WI. There were 3 cases with small cystic fluid) or 3 cases with hypointensity on DWI (4 cases) or 7 cases with high or low mixed signal intensity. Enhanced scan showed slight enhancement in 8 cases (marginal point) or obvious enhancement in 3 cases (P < 0.05). Conclusion Intraventricular cavernous hemangioma is more common in lateral ventricle. Most of the CT images were of high density and MRI with mixed signal. When T _ T _ 2WI showed small cystic fluid level, low signal intensity loop and enhanced edge nodular enhancement, it could be used as a diagnostic basis for intracerebroventricular cavernous hemangioma.
【作者单位】：苏州大学附属第一医院放射科;苏州大学附属第一医院介入科;
【分类号】：R445.2;R743.4
【正文快照】： 作者单位:215000苏州大学附属第一医院放射科(陈彤、郭亮);介入科(孙亚鹏);*通讯作者海绵状血管瘤(cavernous angiomas,CA)亦称海绵状血管畸形,是由异常扩大的海绵窦状畸形血管团组成,发生于颅内者以幕上脑实质多见[1]。由于血流缓慢,血管造影通常为阴性,因此诊断多依赖CT或MR

【相似文献】