| 肖翔,林洁,许乙凯,代月黎,郝鹏,黄其鎏,吴元魁.脑室内少突神经胶质瘤CT和MRI表现：与病理对照(6例报告)[J].中国医学影像技术,2013,29(8):1258~1262 |
| 脑室内少突神经胶质瘤CT和MRI表现：与病理对照(6例报告) |
| CT and MRI findings of intraventricular oligodendroglioma：A comparative analysis with pathology of 6 cases |
| 投稿时间：2013-01-25 修订日期：2013-06-30 |
| DOI： |
| 中文关键词: 少突神经胶质瘤 脑室 体层摄影术,X线计算机 磁共振成像 |
| 英文关键词:Oligodendroglioma Cerebral ventricles Tomography, X-ray computed Magnetic resonance imaging |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨脑室内少突神经胶质瘤(IVO)的影像学特点。方法 回顾性分析6例经手术病理证实的IVO患者的临床、病理和影像学资料,6例均接受MR扫描,其中2例同时接受CT检查。 结果 5例IVO为WHOⅡ级,1例IVO为WHOⅢ级;左侧侧脑室和3脑室IVO各3例;4例侵犯脑室壁;6例均存在脑积水和瘤周水肿;4例肿瘤存在多发囊变,2例为完全实性;2例瘤内有出血;1例瘤内见钙化;1例见流空血管影。肿瘤实性部分CT呈稍高密度,增强扫描轻-中度强化;T1WI以等信号或稍低信号为主,T2WI以等信号或稍高信号为主,增强扫描4例呈明显不均匀强化,2例呈轻度强化。结论 IVO的CT和MRI表现具有一定特点,确诊需依赖病理学检查。 |
| 英文摘要: |
| Objective To investigate the imaging characteristics of intraventricular oligodendroglioma (IVO). Methods The clinical, pathological and imaging data of 6 patients with pathologically confirmed IVO were retrospectively analyzed. All patients underwent MR scanning, and 2 of them underwent CT scanning. Results Five cases of IVO were classified as WHO grade Ⅱ and 1 as WHO grade Ⅲ. Three tumors located in the left lateral ventricles, and 3 located in the third ventricle. Tumors of 4 cases invaded the ventricular wall. Peritumoral edema and hydrocephalus were observed in all 6 cases. Multiple cystic foci with different sizes in the tumors were found in 4 cases, and tumors in the other two cases were solid. There was intratumoral hemorrhage in 2 cases. Calcification and signal-void area due to tumor blood vessels was seen each in 1 case, respectively. The solid component of tumors showed slight hyperdense in plain CT, and moderately enhanced after administration of contrast media. Isointense or slight hypointense tumors were found on plain T1WI, while isointense or slight hyperintense tumors were found on plain T2WI. On enhanced MRI, remarkable and mild enhancement were observed in 4 and 2 cases, respectively. Conclusion Imaging findings of IVO have certain characteristics, yet the final diagnosis depends on pathology and immunohistochemistry. |
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