学习了!表现典型的骨骼病变

2023-04-04 放射沙龙 放射沙龙 发表于上海

表现典型的骨骼病变

病史:女性,右膝关节疼痛。

此为同一患者左膝关节MR片

结果——非骨化性纤维瘤

精彩解析——影像学表现

右侧股骨远侧干骺端内侧见一边界清晰的偏心性融骨性病变,有扇贝状硬化边缘,覆盖的骨皮质膨胀并蔓延至髓腔。

精彩解析——要点

非骨化纤维瘤也称为纤维黄色瘤,是最常见的纤维性骨病变。

是一种良性病变,没有恶性转化,是一个“别碰”病变。

发生于长骨干骺端骨骼生长板附近(后内侧常见)。

位置:胫骨>股骨>腓骨> >上肢。

最常见于二十岁以内。

将自然消退,在2 - 4年后消失。

通常不需要治疗,除非病变较大(大于骨横径50%),此时骨折风险增加(考虑刮除术并骨移植)。

通常无症状,但可能会出现疼痛和/或病理骨折。

精彩解析——影像学表现

X线片:

基于皮质偏心性融骨性病变,并薄或扇形硬化边缘。

病变的长轴与骨长轴平行。

可蔓延或原发于骨髓腔,覆盖的骨皮质膨胀或变薄。

无质矿化,除非在治疗阶段。

(A)愈合期,病变边缘进行性硬化。(B)晚期愈合后,可呈持续性斑片状硬化。

CT表现:

密度略高于正常的骨髓。

可强化。

MR表现:

T1低信号,T2低到中等信号。

外缘由于反应性硬化T1和T2呈低信号。

可见分隔。

强化。

A-D:平片、T1、T2、T1+C

骨扫描表现:

活跃的病变放射性示踪剂摄取增加。

退化时摄取减少。

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    2023-04-05 屋顶瞄爱赏月 来自贵州省

    签到学习

    0

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    2023-04-05 2809 来自山西省

    学习了

    0

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    2023-04-05 仁术2021 来自吉林省

    不错,学习了。

    0

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    2023-04-04 13d0179fm99暂无昵称 来自山西省

    非骨化性纤维瘤

    0

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    2023-04-04 1013100771 来自山东省

    谢谢分享

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2123833, encodeId=2b8b2123833bd, content=签到学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211111/81c0b64745c644319545ec26d7ef0b34/9ddb2864d5df4dd9bf4305e380bffc96.jpg, createdBy=c7835705079, createdName=屋顶瞄爱赏月, createdTime=Wed Apr 05 08:27:08 CST 2023, time=2023-04-05, status=1, ipAttribution=贵州省), GetPortalCommentsPageByObjectIdResponse(id=2123829, encodeId=f5c621238299a, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3c31528806, createdName=2809, createdTime=Wed Apr 05 07:45:19 CST 2023, time=2023-04-05, status=1, ipAttribution=山西省), GetPortalCommentsPageByObjectIdResponse(id=2123824, encodeId=9708212382459, content=不错,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210606/e8b96fdba070433da10cd357c0646807/28bf16f46e314caaad8396c0c7df7a04.jpg, createdBy=adb15496357, createdName=仁术2021, createdTime=Wed Apr 05 07:41:42 CST 2023, time=2023-04-05, status=1, ipAttribution=吉林省), GetPortalCommentsPageByObjectIdResponse(id=2123784, encodeId=8c122123e8415, content=非骨化性纤维瘤, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=65724176436, createdName=13d0179fm99暂无昵称, createdTime=Tue Apr 04 23:47:24 CST 2023, time=2023-04-04, status=1, ipAttribution=山西省), GetPortalCommentsPageByObjectIdResponse(id=2123767, encodeId=27112123e670d, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2d114843943, createdName=1013100771, createdTime=Tue Apr 04 22:51:13 CST 2023, time=2023-04-04, status=1, ipAttribution=山东省), GetPortalCommentsPageByObjectIdResponse(id=2123721, encodeId=38b32123e210d, content=认真学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6EF3hKja8nER8RMzxQdria9eCYFhgLTLsDOeqnvIYdeLDz5eP6EnicLuE5gibiawgno4zUA0jAR7Nbtp2llQ9fs3Mk/0, createdBy=278f1986883, createdName=医鸣惊人, createdTime=Tue Apr 04 19:21:41 CST 2023, time=2023-04-04, status=1, ipAttribution=山西省)]
    2023-04-04 医鸣惊人 来自山西省

    认真学习了

    0