卵巢静脉平滑肌肉瘤影像表现一例

2018-01-26 佚名 中华放射学杂志

患者女,64岁。

【一般资料】

患者女,64岁。

【现病史】

1个月前无明显诱因出现腹胀、尿频伴左下腹坠痛,程度较轻,间断发作,近2周下腹疼痛加重。

【体格检查】

体检元明显异常。

【辅助检查】

CT检查:左侧腰大肌前内侧见长椭圆形混杂密度肿块,头侧呈椎形向上,中心密度不均,边界尚清;增强扫描动脉期肿瘤头侧部分可见较多明显强化的肿瘤血管,静脉期肿瘤不均匀斑片状强化,周边明显,头侧可见左侧卵巢静脉增宽,与病变相延续(图1—5)。病变与左侧输尿管中下段分界不清。MRI:肿物信号不均,T1WI等信号,与肌肉大致等信号(图6),T2WI混杂高信号,头侧可见较多流空肿瘤血管(图7),脂肪抑制T:WI病变信号无衰减,DWI呈高信号;增强扫描表现和CT相似,动脉期可见较多明显强化的肿瘤血管,静脉期肿瘤不均匀斑片状强化,延迟期肿物呈明显不均强化,肿瘤内可见低强化坏死与流空的血管(图8—11)。肿瘤与左侧子宫圆韧带分界不清,上缘与左侧卵巢静脉相连,似相延续。手术所见:右附件正常,左输卵管及卵巢外观未见异常,左卵巢外侧可见20cm×5cm大小的长椭圆形肿物,自卵巢沿髂血管走行至。肾下极水平,上端呈蒂状,与左侧卵巢静脉相延续,与侧盆壁及后腹膜致密粘连,未探及骨盆漏斗韧带。腹腔无积液,结肠与左侧盆壁闻有少量粘连,大网膜、小肠正常。钝性分离左侧卵巢外肿物与侧盆壁致密粘连,游离左侧附件及肿物,处理肿物位于肾下极蒂部,切除肿物送病理检查。病理及免疫组织化学表现:左附件梭形细胞肿瘤,大小11.5cm×5.5cm×3.6cm。显微镜下见肿瘤位于卵巢旁,未侵犯输卵管。肿瘤细胞较丰富,呈重度异型性,部分呈多形性,可见瘤巨细胞,大量肿瘤性坏死,可见核分裂象(图12)。免疫组织化学:结蛋白(Desmin)阳性++,波形蛋白(Vim)、瘤细胞CD34、平滑肌肌动蛋白-a(SMA)阳性+,细胞增殖指数(Ki-67)15%,细胞角蛋白(AE)1/3阴性,瘤细胞CD31、CD10均为阴性。























【初步诊断

诊断为卵巢静脉平滑肌肉瘤。

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    2018-09-26 fusion
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    2018-01-26 sunfeifeiyang

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