超声误诊胎儿腹膜后畸胎瘤1例

Oncoradiology(2021)

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Abstract
1 资 料 患者,女性,37岁,孕1产0,孕31周时行产前检查.超声检查:胎儿腹部见一混合性肿块,边界清,大小为61 mm×59 mm×50 mm,内见多个斑点状强回声及不规则无回声区(图1A),彩色多普勒血流显像(color Doppler flow imaging, CDFI)显示其内部及边缘见少许彩色血流信号 (图1B),考虑为胎粪性腹膜炎.孕37周剖腹产娩出胎儿,出生后行腹部CT检查:右侧腹膜后区见一团块状肿物,边界清,大小为77 mm× 70mm×90 mm,密度不均,内见分隔、钙化及斑片状脂肪密度影,增强扫描实质及分隔明显强化(图2),考虑为腹膜后畸胎瘤.术中见腹膜后混合性肿块突向腹腔,双肾受压推移.病理学检查:未成熟性畸胎瘤(3级,图3).
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