摘要
<正>孕妇,35岁,孕6产1,平素月经欠规律,有多次自然流产史,病因未明。孕早期无阴道流血、下腹痛、感冒、发热、放射线及化学毒物接触等病史。未行唐氏筛查,地中海贫血基因检查无异常。孕21周超声提示胎儿部分肠管回声增强,单脐动脉,行脐血流穿刺提示胎儿染色体型无异常。孕26周因超声提示胎儿体质量偏小,予皮下注射肝素1个月。孕31周超声检查:胎儿双顶径74 mm,头围269 mm,腹围232mm,股骨长53 mm,肱骨长48 mm。门静脉矢状部向右发出两分支,分别与肝中静脉相连,门静脉左支与右支相连处变细,宽约1.5 mm,静脉导管4.0 mm
引文
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