复发性星形细胞瘤的MRI征象分析  

The Analysis of MRI Features in Recurrent Astrocytomas

作　　者：王可武[1] 沈钧康[1] 龚建平[1] 陆之安[1] 钱铭辉[1] 

机构地区：[1]苏州大学附属第二医院影像科,215004

出　　处：《临床放射学杂志》2006年第2期122-125,共4页Journal of Clinical Radiology

摘　　要：目的 分析复发性星形细胞瘤的MRI征象，探讨MRI对复发性星形细胞瘤的诊断价值。资料与方法 回顾性分析45例经病理学证实的复发性星形细胞瘤，复发时间距第一次手术时间为4～122个月，平均8．6个月，在45例复发性星形细胞瘤中，Ⅰ级2例，Ⅱ级9例．Ⅲ级12例，Ⅳ级22例。结果 45例复发性星形细胞瘤中，共有复发病灶49个。32例出现1种或1种以上方式的颅内扩散；笔者将颅内扩散分为3种方式：结节型、线型和混合型，其中结节型扩散28例，线型扩散23例，混合型扩散11例。17例出现硬脑膜“尾征”。结论 MRI是诊断复发性星形细胞瘤的重要手段，而且能清晰的揭示复发肿瘤颅内扩散的方式。Objective To analyze the MR/features of recurrent astroeytomas and to explore its value in the diagnosis of recurrent astroeytomas. Materials and Methods 45 cases with pathologically proved recurrent astrocytomas were analyzed retrospectively. The interval between recurrence and the first operation ranged from 4 to 122 months （averago：8.6 months） . Of the 45 patients, there were grade Ⅰ in 2, grade Ⅱ in 9, grade Ⅲ in 12, grade IV in 22 cases respectively. Results There were 49 recurrent lesions in 45 cases. 1 or more patterns of intracranial spread were demonstrated in 32 cases; We divided intracranial spread into three types： nodule-type, line-type and mixd type; there were 28 cases had nodule type spread, 23 cases had linetype spread and 11 cases had mixd type spread. 17 patients were presented as the dural tail sign. Conclusion MRI is an important tool in the diagnosis of recurrent astrocytomas and can reveal the patterns of intracranial spread clearly.

关 键 词：星形细胞瘤 复发 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤]