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1、恶性视神经胶质瘤1例2014-12-1217:28来源:丁香园作者:luweili字体大小-
2、+近日,AJNR杂志刊登了如下一则病例。患者,女,63岁,主诉为视野缺损3天。神经系统查体可见左侧同向性偏盲,余(-)。既往有高血压病史(入院:235/155mmHg),抑郁病史。颅脑MRI检查可见FLAIR像右侧视束略高信号影。1个月后复查示右侧视束异常信号影较前稍有增加。2个月后复查,病灶较前明显增大。活检标本行HE染色(B、C)示伪栅栏样(pseudopalisading)细胞聚集在坏死细胞周围,微血管增生及核异型。活检标本
3、行免疫组织化学染色(D)示细胞GFAP染色强阳性。 locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame图1.横断位FLAIR示右侧视束略高信号影。locatedintheTomb
4、,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame图2.横断位FLAIR(A)示1月后复查,右侧视束异常信号影较前稍有增加。横断位DWI(B)及ADC(C)示病变处弥散略受限。locatedintheTomb,
5、DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame图3.MRI增强横断位(A)及冠状位(B)示:双侧视束、视交叉及视神经均强化,右侧强化病灶延伸至下丘脑、丘脑,并可能累及内囊。locatedintheTomb,D
6、ongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame图4.MRI增强横断位(A)示2个月后复查,病灶较前明显增大。活检标本行HE染色(B、C)示伪栅栏样(pseudopalisading)细胞聚集在坏死细胞周围,微血
7、管增生及核异型。活检标本行免疫组织化学染色(D)示细胞GFAP染色强阳性。恶性视神经胶质瘤在成人患者中罕见,目前已报道的患者不足50例,儿童患者多同时患有神经纤维瘤病2型,成人患者未见报道。病变常累及视交叉,并沿视觉通路扩散,50%的患者可累及下丘脑,22.5%累及颞叶,15%累及基底节。临床常表现为亚急性的视野缺损,单侧视神经受累时为单眼盲,视交叉受累则表现为偏盲,患者多无典型的颅内占位表现。诊断要点:1.视觉通路中任一部位的扩张性及浸润性病灶(视神经、视交叉或视束),并可累及相邻结构。2.肿瘤在MRITIWI呈低信号,
8、T2WI呈高信号,可被强化,弥散受限,MRPWI可见肿瘤高灌注。3.肿瘤相关症状及中枢神经系统不同程度的血管性水肿。鉴别诊断:淋巴瘤,脱髓鞘性疾病,感染性及肉芽肿性疾病,白血病及肿瘤转移。治疗:手术,放疗,化疗及放化疗效果均不明显。locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpente
9、r),whogotAfewbayonets,duetomissedfatal,whennightcame预后:恶性视神经胶质瘤生长迅速,患者多很快死亡,中位生存期小于1年。locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassass