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左侧卵巢无性细胞瘤超声表现1例

2019-01-21 赵卫华 王吁 赵梦楚 中国超声医学杂志

患者女,20岁,未婚。发现腹部膨隆3周来本院就诊,患者体型瘦,下腹盆腔部略膨隆,触之略硬。既往月经周期及量正常,偶有痛经,大小便正常。超声所见:子宫后位,宫体大小约55mm×39mm×45mm,明显受压,轮廓模糊,肌壁回声尚均匀,子宫内膜隐约可见,厚约3mm,略后移。

患者女,20岁,未婚。发现腹部膨隆3周来本院就诊,患者体型瘦,下腹盆腔部略膨隆,触之略硬。既往月经周期及量正常,偶有痛经,大小便正常。超声所见:子宫后位,宫体大小约55mm×39mm×45mm,明显受压,轮廓模糊,肌壁回声尚均匀,子宫内膜隐约可见,厚约3mm,略后移。
 
于盆腔内距体表9mm处,可见巨大不规则略强回声区,范围约184mm×105mm×178mm,上界达胳孔处,下至耻骨联合,左侧缘平髂前上棘,右缘位于髂前上棘内侧1~2指处,边界尚清,呈“分叶状”,内回声尚均匀,后方回声略增强(图1)。
 


CDFI:其周边及内见短线状、树枝状血流信号,引出低速、低阻动脉频谱血流信号。该回声与周边组织界限欠清,子宫明显受压,子宫与包块间隐约见子宫包膜分隔(图2~4)。腹腔广泛探查仅于右侧髂窝肠间隙探及深约14mm不规则游离液性无回声区,内透声欠佳。
 






双侧卵巢显示不清超声提示:盆腔内巨大占位(实性可能),考虑:来源于左侧附件?建议进一步检查:盆腔少量积液,子宫未见明显异常,双侧卵巢显示不清。CT增强检查:盆腔入口处至膀胱上方见巨大软组织密度肿块影,增强扫描明显不均匀强化,较大层面大小约136mm×107mm。病灶与子宫前缘相邻。邻近组织受推压移位;盆腔内见少量积液。CT诊断意见:盆腔内巨大占位,考虑来源于左侧附件区的肿瘤可能性大。
 
手术所见:盆腔可见一巨大肿物,大小约183mm×98mm×173mm,形态不规则,表面凹凸不平,质地硬,表面可见粗大的血管,并粘连于子宫后方,来源于左侧卵巢;左侧输卵管爬行于其上,失去正常形态,子宫大小及外观正常,右侧卵巢、输卵管外观正常。腹腔内见少量咖啡色腹水,约50ml。病理诊断:左侧附件区恶性肿瘤,无性细胞瘤。
 
讨论
 
无性细胞瘤占卵巢恶性肿瘤的5%,是反映原始生殖细胞的恶性肿瘤。中度恶性,单侧居多,右侧多于左侧。肿瘤为圆形或椭圆形,中等大,实性,触之如橡皮样,表面光滑或呈分叶状。病理形态及组织来源与睾丸精原细胞瘤很相似,因此有同一名称,即生殖细胞瘤。多发生在10~30岁的青少年和年轻妇女,平均年龄21岁。肿瘤生长较快,病程较短。多数患者的月经及生育功能正常,结合以上几个特点在工作中如遇青年女性,盆腔较大实性肿块,边界尚清,内回声尚均匀,且月经正常时首先应该考虑到卵巢无性细胞瘤的可能性。
 
原始出处:

赵卫华,王吁,赵梦楚.左侧卵巢无性细胞瘤超声表现1例[J].中国超声医学杂志,2018(03):256-257.

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    2019-01-23 277837675

    比较典型的病例

    0

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    2019-01-23 rosezhougj

    该病例比较典型,超声图像有代表性,通过学习可培养临床思维能力。

    0

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