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前纵隔高分化脂肪肉瘤超声表现1例

2019-12-25 石玲玲 宋建 张文君 临床超声医学杂志

患者女,52岁,因声音嘶哑,饮水呛咳半个月余入院。体格检查:左侧颈胸交界处可触及一大小约7 cm×4 cm包块,质软,无明显压痛,颈部活动度尚可。超声检查:左侧颈动脉周边见一大小8 cm×4 cm×3 cm稍高回声包块包绕颈总动脉,边界较清楚,形态规则,内部回声不均匀,包块后面部分显示不满意;CDFI示包块内可探及少许血流信号(图1)。超声提示:左侧颈部实性包块(不排除恶性可能,建议进一步检查)。

患者女,52岁,因声音嘶哑,饮水呛咳半个月余入院。体格检查:左侧颈胸交界处可触及一大小约7 cm×4 cm包块,质软,无明显压痛,颈部活动度尚可。超声检查:左侧颈动脉周边见一大小8 cm×4 cm×3 cm稍高回声包块包绕颈总动脉,边界较清楚,形态规则,内部回声不均匀,包块后面部分显示不满意;CDFI示包块内可探及少许血流信号(图1)。超声提示:左侧颈部实性包块(不排除恶性可能,建议进一步检查)。


图1 前纵隔高分化脂肪肉瘤声像图。A:横切面;B:纵切面。CCA:颈总动脉;M:包块。
 
CT检查提示:前纵隔占位,畸胎瘤首先考虑。MRI检查提示:前纵隔占位,迷走甲状腺肿首先考虑,不排除不典型畸胎瘤。于全身麻醉下行颈胸交界纵隔肿瘤切除术,术中见肿瘤包绕迷走神经主干及左颈总动脉,向下达主动脉弓部,与左颈总动脉,头臂干血管鞘、心包粘连分界不清,肿瘤呈实性,大小为10 cm×8 cm×5 cm,完整切除肿瘤及肿瘤旁纵隔脂肪组织。免疫组织化学结果:CD34(+),CD56(局灶+),MDM2(+),Ki-67(约10%+)。结合免疫组化结果,病理诊断:高分化脂肪肉瘤伴骨化(图2)。


图2 前纵隔高分化脂肪肉瘤病理图(HE染色,×100)。镜下肿瘤由大量核异型的间质细胞及少量脂肪组织构成。
 
讨论:
 
脂肪肉瘤是由分化程度和异型性不同的脂肪细胞构成的恶性肿瘤,多发生在50~60岁,可分为高分化型、黏液型、圆形细胞型、多形性型及去分化型。高分化型脂肪肉瘤好发于四肢近端,其次为腹膜后,发生于前纵隔的脂肪肉瘤临床少见。因含有成熟脂肪组织,其典型声像图表现为团块状或分叶状的高回声包块,边界较清楚,内部较均匀。该病需与良性脂肪瘤相鉴别,良性脂肪瘤不会侵犯血管,内部呈不均匀高或低回声,CDFI示肿瘤内一般无血流信号。
 
该病早期准确诊断并完全切除则预后较好。本病例在首诊时考虑到肿瘤包绕左侧颈总动脉,生长方式具有侵袭性,与良性脂肪瘤压迫性生长不同,因此未排除恶性可能,但由于该肿瘤位置较深,超声探查难以显示全部肿瘤,使测量值偏小,且难以判断肿瘤来源,因此需结合其他检查综合判断。
 
原始出处:

石玲玲,宋建,张文君.前纵隔高分化脂肪肉瘤超声表现1例[J].临床超声医学杂志,2018,20(02):89.

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    2020-02-19 gds2009
  2. [GetPortalCommentsPageByObjectIdResponse(id=1952992, encodeId=a102195299209, content=<a href='/topic/show?id=d2b010220055' target=_blank style='color:#2F92EE;'>#高分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102200, encryptionId=d2b010220055, topicName=高分化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f612331, createdName=gds2009, createdTime=Wed Feb 19 05:19:00 CST 2020, time=2020-02-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=809282, encodeId=41e28092820d, content=脂肪肉瘤与脂肪瘤咋区分呢?穿刺可否指导诊断, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=830f2464103, createdName=Bureaukey, createdTime=Sat Aug 15 23:46:24 CST 2020, time=2020-08-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1632690, encodeId=a9751632690be, content=<a href='/topic/show?id=676d92821e3' target=_blank style='color:#2F92EE;'>#超声表现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92821, encryptionId=676d92821e3, topicName=超声表现)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4dfe21938258, createdName=zhangjingnwpu, createdTime=Mon Nov 09 04:19:00 CST 2020, time=2020-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=382970, encodeId=718a3829e0a9, content=这是在哪个医院做的手术?我家属也有纵隔恶性肉瘤也在心包。最近老声音嘶哑, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIxCDVRgDSbBDbOqWzqmGm5xl1BaPF4urzXCh47q8wnFgjia7hYZbGquC6ic8qmxkxvTozCUAtwicVZw/132, createdBy=5c6a5328210, createdName=潘炜, createdTime=Tue May 19 15:42:24 CST 2020, time=2020-05-19, status=1, ipAttribution=)]
    2020-08-15 Bureaukey

    脂肪肉瘤与脂肪瘤咋区分呢?穿刺可否指导诊断

    0

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  4. [GetPortalCommentsPageByObjectIdResponse(id=1952992, encodeId=a102195299209, content=<a href='/topic/show?id=d2b010220055' target=_blank style='color:#2F92EE;'>#高分化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102200, encryptionId=d2b010220055, topicName=高分化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f612331, createdName=gds2009, createdTime=Wed Feb 19 05:19:00 CST 2020, time=2020-02-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=809282, encodeId=41e28092820d, content=脂肪肉瘤与脂肪瘤咋区分呢?穿刺可否指导诊断, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=830f2464103, createdName=Bureaukey, createdTime=Sat Aug 15 23:46:24 CST 2020, time=2020-08-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1632690, encodeId=a9751632690be, content=<a href='/topic/show?id=676d92821e3' target=_blank style='color:#2F92EE;'>#超声表现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=92821, encryptionId=676d92821e3, topicName=超声表现)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4dfe21938258, createdName=zhangjingnwpu, createdTime=Mon Nov 09 04:19:00 CST 2020, time=2020-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=382970, encodeId=718a3829e0a9, content=这是在哪个医院做的手术?我家属也有纵隔恶性肉瘤也在心包。最近老声音嘶哑, beContent=null, objectType=article, channel=null, level=null, likeNumber=113, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTIxCDVRgDSbBDbOqWzqmGm5xl1BaPF4urzXCh47q8wnFgjia7hYZbGquC6ic8qmxkxvTozCUAtwicVZw/132, createdBy=5c6a5328210, createdName=潘炜, createdTime=Tue May 19 15:42:24 CST 2020, time=2020-05-19, status=1, ipAttribution=)]
    2020-05-19 潘炜

    这是在哪个医院做的手术?我家属也有纵隔恶性肉瘤也在心包。最近老声音嘶哑

    0

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