根据“脑膜尾征”就能诊断脑膜瘤?| 鉴别诊断

2018-08-26 佚名 新乡影像诊断中心

可以看到“脑膜尾征”的7大病变

有“脑膜尾征”的不一定是脑膜瘤,还有可能是淋巴瘤、转移瘤、恶性胶质瘤、原始神经外胚层肿瘤、黑色素瘤、浆细胞肉芽肿、感染性脑膜炎、嗜酸性肉芽肿、Wegener肉芽肿等。


和脑膜瘤鉴别——

相同点:T2信号不高,水肿明显,增强显著强化,可见“脑膜尾征”(红色箭头)。

不同之处:脑膜瘤常伴有颅板增厚,伴钙化,边缘清晰,常不出现毛刺征(蓝色箭头)



2.转移瘤

(本例原发肿瘤为肺癌,箭头所指脑膜尾征)



3.浆细胞肉芽肿

(是颅内罕见的特发性炎性肉芽肿性病变,以多克隆浆细胞增生为特征,影像学表现同样可以看到脑膜尾征,与脑膜瘤鉴别困难)



4.外周型原始神经外胚层肿瘤



5.胶质肉瘤



6.黑色素瘤

(典型T1短信号病变)



7.最后来一个经典的脑膜瘤



总之,“脑膜尾征”是影像学一个重要征象,经常出现在脑膜瘤中,但也不是脑膜瘤所特有的,当脑膜受到肿瘤侵犯或者脑膜出现反应性改变的时候都可能出现脑膜尾征。因此在工作中,不能仅仅依靠“脑膜尾征”就诊断脑膜瘤。

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    2018-08-28 医者仁心5538

    学习了

    0

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    2018-08-26 flysky120

    学习一下知识了

    0

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    2018-08-26 ylzr123

    感谢小编为我们准备了如此丰盛的精神大餐,同时也向作者致谢!认真学习了,点赞!

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=341524, encodeId=4a24341524d5, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Tue Aug 28 22:06:28 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1280836, encodeId=253712808360d, content=<a href='/topic/show?id=a55385062c7' target=_blank style='color:#2F92EE;'>#脑膜瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85062, encryptionId=a55385062c7, topicName=脑膜瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e0a1165, createdName=jiangfeng5067, createdTime=Tue Aug 28 05:29:00 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1506940, encodeId=2cbb1506940f5, content=<a href='/topic/show?id=a66b9624e0c' target=_blank style='color:#2F92EE;'>#鉴别诊断#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96247, encryptionId=a66b9624e0c, topicName=鉴别诊断)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=77179846395, createdName=Homburg, createdTime=Tue Aug 28 05:29:00 CST 2018, time=2018-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340909, encodeId=9ae5340909af, content=学习一下知识了, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160718/IMG578C993D395567540.jpg, createdBy=59b81918946, createdName=flysky120, createdTime=Sun Aug 26 15:38:33 CST 2018, time=2018-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340907, encodeId=f4dc34090eb4, content=感谢小编为我们准备了如此丰盛的精神大餐,同时也向作者致谢!认真学习了,点赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Sun Aug 26 15:06:24 CST 2018, time=2018-08-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=340892, encodeId=b295340892a1, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Sun Aug 26 14:37:33 CST 2018, time=2018-08-26, status=1, ipAttribution=)]
    2018-08-26 医者仁心5538

    学习了

    0