2007年WHO中枢神经系统新增肿瘤及肿瘤亚型的影像学表现(附6例报告)  

Imaging Findings of Newly Augmented Tumors and Tumor Subtypes in the 2007 Revised WHO Central Nervous System Tumor Classification(Report of Six Cases)

作　　者：杨桂芬[1] 张龙江[2] 卢光明[2] 朱虹[1] 

机构地区：[1]南京军区南京总医院核医学科,南京210002 [2]南京军区南京总医院影像科,南京210002

出　　处：《放射学实践》2010年第1期29-32,共4页Radiologic Practice

摘　　要：目的:提高对2007年WHO中枢神经系统新增肿瘤及肿瘤亚型的影像学诊断水平。方法:搜集6例经手术病理学证实的2007年WHO中枢神经系统新增肿瘤及肿瘤亚型病例,分析其影像学表现。结果:6例中脑室外神经细胞瘤3例,非典型脉络丛乳头状瘤1例,黏液性毛细胞型星形细胞瘤2例。3例脑室外神经细胞瘤,位于左顶叶1例,左额顶叶1例,鞍区1例。均表现为巨大的囊实性或实性肿块,增强后病变均见明显不均匀强化。1例非典型脉络丛乳头状瘤表现为四脑室内实性分叶状肿块,增强后明显均匀强化。2例黏液性毛细胞型星形细胞瘤表现为小儿丘脑和基底节区囊实性肿块,增强后不均匀环形或丝条形强化。结论:尽管本研究显示的2007年WHO中枢神经系统新增肿瘤及肿瘤亚型的影像学表现并非特异,但认识这些新增肿瘤及肿瘤亚型对于诊断及治疗有一定意义。Objective：To improve the knowledge for the diagnosis of newly augmented tumors and tumor subtypes in the 2007 revised WHO central nerve system （CNS） tumor classification. Methods： Six cases with surgery and pathology proven tumors which were newly augmented in the 2007 revised WHO CNS tumor classification were collected, their ima ging findings were analyzed. Results：Of the six eases, there were extraventrieular neurocytoma （3 cases）, atypical ehoroids plexus papilloma （1 ease） and pilomyxoid astrocytoma （2 cases）. Of the three extraventrieular neurocytomas,their locations were in left parietal lobe,left frontoparietal lobe and sellar region for 1 case each. All of them appeared as a huge cystic-solid or solid mass with obvious heterogeneous enhancement. The atypical ehoroids plexus papilloma appeared as a lobulated solid mass within the fourth ventricle with marked homogeneous enhancement. The two pediatric patients with pJlomyxoid astro- cytoma appeared as cystic-solid mass in thalamus and basal ganglia region with heterogeneous rim or lin＇ear enhancement. Conclusion：Although the imaging findings of newly augmented tumors of the 2007 revised WHO CNS tumor classification are non-specific, yet recognition of these tumors are still significant for the diagnosis and clinical treatment.

关 键 词：中枢神经系统肿瘤 磁共振成像 病理学 

分 类 号：R739.4[医药卫生—肿瘤]