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腹膜后恶性纤维组织细胞瘤的影像学检查与分析

2013-07-19 佚名 中国医学论坛报

          图1 左肾门水平CT平扫,示右侧脊柱旁不规则软组织密度肿块,伴不规则低密度坏死区(星号);病变与右侧腰大肌分界不清,箭号示左侧腰大肌   图2 增强CT扫描动脉期,肿块不均匀中度强化,坏死部分强化不明显;可见下腔静脉受压向前移位(箭号)   

  

论坛报病例20130425

       图1 左肾门水平CT平扫,示右侧脊柱旁不规则软组织密度肿块,伴不规则低密度坏死区(星号);病变与右侧腰大肌分界不清,箭号示左侧腰大肌

  图2 增强CT扫描动脉期,肿块不均匀中度强化,坏死部分强化不明显;可见下腔静脉受压向前移位(箭号)

  图3 增强延迟扫描,病变仍可见强化;相邻腰大肌、腰方肌受累显示不清

  图4 增强扫描动脉期,沿右输尿管长轴曲面多平面重组(CPR),可见肿块巨大,右肾受压向前上移位(箭号),右输尿管(箭头)亦向前内移位,但无受侵犯狭窄积水

  图5 增强扫描厚块最大密度投影(slab-MIP),示门静脉及肠动静脉位置变化不明显 

  ■ 医学影像

  病史简介

  患者男性,53岁,右腰部不适半年余,B超检查发现右侧腹部占位。

  查体示:右侧腹部可触及包块,质硬固定,压痛不明显;右侧腰部轻度扣击痛。实验室检查无阳性发现。

  诊断

  右侧腹膜后恶性纤维组织细胞瘤(手术病理结果)。

  ■ 点评

  腹部肿瘤的影像定位,可借助于相邻器官的移位来判断。由于肾脏、输尿管位于肾周间隙(perirenal space),受压向前内侧移位而受浸润不明显;腰大肌、腰方肌与肾旁后间隙(posterior pararenal space)相邻,受病变侵犯,腹腔内血管无移位,提示肿瘤来源于腹膜后肾旁后间隙。

  非器官来源的原发腹膜后肿瘤病理类型众多,多数肿瘤影像表现特异性不强。除进行定位诊断外,影像还有助于判断肿瘤的良恶性。病史短、影像显示肿瘤较大提示肿瘤生长迅速,强化明显、坏死范围较大及相邻肌肉侵犯均提示肿瘤恶性程度高,但病变的最终定性还需要病理诊断。

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  1. [GetPortalCommentsPageByObjectIdResponse(id=125867, encodeId=c28012586ed2, content=腹膜后恶性纤维组织细胞瘤,只要定位准确了,可以缩小疾病犯愁,对诊断很有价值。, beContent=null, objectType=article, channel=null, level=null, likeNumber=90, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzcjoLTEEgkSSQ8pVIiaf4a4INaoMLBV16QEk3dvvBRpicwIwmDGv0jePErJ4aE9ibVBDPtkialQLT9Bs/0, createdBy=04811949400, createdName=邓启付, createdTime=Tue Sep 13 23:05:00 CST 2016, time=2016-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1931886, encodeId=86d01931886d1, content=<a href='/topic/show?id=6f9885648e1' target=_blank style='color:#2F92EE;'>#腹膜后#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85648, encryptionId=6f9885648e1, topicName=腹膜后)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=fda6311, createdName=119337457, createdTime=Tue Aug 27 19:16:00 CST 2013, time=2013-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1775717, encodeId=cf191e75717fe, content=<a href='/topic/show?id=f59f5292ea7' target=_blank style='color:#2F92EE;'>#恶性纤维组织细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=52927, encryptionId=f59f5292ea7, topicName=恶性纤维组织细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=789538794376, createdName=appleandpeer, createdTime=Sat Dec 28 10:16:00 CST 2013, time=2013-12-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1475758, encodeId=2e5114e57580a, content=<a href='/topic/show?id=2bcee797732' target=_blank style='color:#2F92EE;'>#细胞瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77977, encryptionId=2bcee797732, topicName=细胞瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=bf5e7252474, createdName=spoonycyy, createdTime=Sun Jul 21 14:16:00 CST 2013, time=2013-07-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1623728, encodeId=8ab81623e28f2, content=<a href='/topic/show?id=16ba8564526' target=_blank style='color:#2F92EE;'>#腹膜#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=85645, encryptionId=16ba8564526, topicName=腹膜)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=93e220615097, createdName=xuyong530, createdTime=Sun Jul 21 14:16:00 CST 2013, time=2013-07-21, status=1, ipAttribution=)]
    2016-09-13 邓启付

    腹膜后恶性纤维组织细胞瘤,只要定位准确了,可以缩小疾病犯愁,对诊断很有价值。

    0

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    2013-07-21 xuyong530
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