超声诊断双胎妊娠并无心无头无体畸形胎1例
CHINESE JOURNAL OF ULTRASONOGRAPHY(2002)
Abstract
孕妇,32岁.妊娠19周,因腹胀伴恶心,呕吐就诊.超声检查:宫腔内偏左测及一正常胎儿,左枕横位,双顶径 4.8 cm,胎心搏动规律,脊柱连续,四肢未见明显异常,股骨长 3.0 cm,右前壁胎盘,羊水指数 16.8 cm.于此胎儿右上方宫腔内测及一 10.8 cm×7.5 cm大小球形团块,边界清晰,仔细辨认其内显示长约 2.2 cm骨骼样强回声,亦可见部分排列规则椎体样强回声,并显示"菜花状"肠管样回声及一 2.7 cm×2.3 cm大小的液性无回声区,似胃泡,其余均为不均质实性低回声(图1).团块边缘处测及一索条状脐带样高回声连于胎盘,CDFI显示索条状高回声内有血流信号(图2),PW示为脐动、静脉血流频谱.但羊水中未测及羊膜隔高回声.超声诊断:双胎,一为正常胎儿,一为无心、无头、无体畸形胎.
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