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毛细胞黏液样星形细胞瘤的MRI表现及与毛细胞型星形细胞瘤的鉴别
引用本文:黄清玲,刘文,刘宏毅,朱海青,张龙江,卢光明. 毛细胞黏液样星形细胞瘤的MRI表现及与毛细胞型星形细胞瘤的鉴别[J]. 临床放射学杂志, 2010, 29(3)
作者姓名:黄清玲  刘文  刘宏毅  朱海青  张龙江  卢光明
作者单位:南京医科大学附属脑科医院放射科,江苏南京,210029;南京医科大学附属脑科医院神经外科,江苏南京,210029;南京医科大学附属脑科医院病理科,江苏南京,210029;南京军区南京总医院医学影像科
基金项目:南京医科大学科技发展基金面上项目(课题号NMUM113)
摘    要:
目的探讨毛细胞黏液样星形细胞瘤(PMA)的MRI影像学特征。资料与方法对经手术病理证实的4例PMA的MRI资料进行回顾,分析PMA的MRI特征,并与毛细胞型星形细胞瘤(PA)进行比较。结果男、女各2例,发病年龄分别为4岁2例、13岁及22岁各1例。发病部位分别为鞍旁、丘脑、左颞叶及右侧小脑近中线各1例。肿瘤边界清楚,瘤周无水肿。MRI2例呈囊实性改变,2例呈均匀长T1、长T2信号,扩散加权成像(DWI)瘤体呈等信号,肿瘤内可有出血。增强后明显壁结节强化1例,3例均质环形中度强化,肿瘤囊壁轻度均匀强化,囊性部分不强化。结论PMA是一类瘤周无水肿、好发于近中线部位、多见于儿童的世界卫生组织(WHO)Ⅱ级的侵袭性星形细胞瘤。MRI作为PMA主要的影像检查手段,有助于术前诊断及与其他肿瘤的鉴别。

关 键 词:毛细胞黏液样星形细胞瘤  毛细胞型星形细胞瘤  磁共振成像

Magnetic Resonance Imaging Characteristics of Pilomyxoid Astrocytoma and Comparision with Pilocytic Astrocytoma
HUANG Qingling,LIU Wen,LIU Hongyi,et al.. Magnetic Resonance Imaging Characteristics of Pilomyxoid Astrocytoma and Comparision with Pilocytic Astrocytoma[J]. Journal of Clinical Radiology, 2010, 29(3)
Authors:HUANG Qingling  LIU Wen  LIU Hongyi  et al.
Affiliation:HUANG Qingling,LIU Wen,LIU Hongyi,et al.Department of Radiology,Nanjing Medical University Affiliated Brain Hospital,Nanjing,Jiangsu Province 210029,P.R.China
Abstract:
Objective To investigate MR imaging features of pilomyxoid astrocytoma(PMA).Materials and Meth-ods Clinical,MR imaging,and pathological data of 4 patients with PMA were collected.We analyzed MR findings of four patients with PMA and compared them with those of typical PA.Results Four patients were 2 males and 2 females.Two patients were 4 years old,the other were 13 and 22 years old respectively.The tumors located in the right thalamus,parasellar regions,left temporal lobe and the right cerebellar hemispher...
Keywords:Pilomyxoid astrocytoma Pilocytic astrocytoma Magnetic resonance imaging  
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