妊娠8周时联体双胎的早期超声诊断：一例报告
Early ultrasound diagnosis of conjoined twins at eight weeks of pregnancy: A case report.
作者信息
Liang Xiao-Wen, Cai Yong-Yi, Yang Yao-Zhang, Chen Zhi-Yi
机构信息
Department of Ultrasound Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510000, Guangdong Province, China.
Department of Ultrasound, Liwan Hospital of the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510000, Guangdong Province, China.
出版信息
World J Clin Cases. 2020 Nov 6;8(21):5389-5393. doi: 10.12998/wjcc.v8.i21.5389.
BACKGROUND
Conjoined twins are a rare occurrence, and the majority of these malformations are detected during second trimester screening.
CASE SUMMARY
Herein we report a case of conjoined twins, which was diagnosed by ultrasound at 8 wk gestation and was normal at 7 wk gestation. The two fetuses shared one heart and were diagnosed as thoracopagus twins. This is the first report of conjoined twins diagnosed at 8 wk gestation. The pregnancy was terminated electively at 9 wk gestation. Because some congenital malformations can be diagnosed earlier, a prenatal ultrasound examination at an early gestational stage cannot be dismissed.
CONCLUSION
This case demonstrates that a 7-8 wk gestation might be the earliest period when conjoined twins can be diagnosed by ultrasound.
背景
联体双胎极为罕见，大多数此类畸形在孕中期筛查时被发现。
病例摘要
在此我们报告一例联体双胎病例，其在妊娠8周时经超声诊断，而在妊娠7周时检查正常。两个胎儿共用一颗心脏，被诊断为胸部联体双胎。这是妊娠8周时诊断出联体双胎的首例报告。妊娠在9周时选择性终止。由于一些先天性畸形可更早诊断，早期妊娠阶段的产前超声检查不容忽视。
结论
该病例表明，妊娠7 - 8周可能是通过超声诊断联体双胎的最早时期。
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