产前诊断出的巨大脐带是由单绒毛膜双羊膜囊双胎中脐尿管未闭导致的，该双胎存在选择性胎儿生长受限。
Prenatally diagnosed giant umbilical cord resulted from patent urachus in a monochorionic diamniotic twin with selective intrauterine growth restriction.
作者信息
Matsuyama Satoko, Matsumoto Fumi, Matsui Futoshi, Yazawa Koji
机构信息
Department of Urology, Osaka Women's and Children's Hospital, Osaka, Japan.
出版信息
Urol Case Rep. 2023 May 20;49:102440. doi: 10.1016/j.eucr.2023.102440. eCollection 2023 Jul.
A long diffuse giant umbilical cord (GUC), caused by umbilical cord edema associated with a patent urachus, is an extremely rare anomaly. While patients with diffuse GUC appear to experience no significant complications and a good prognosis, little is known about their etiology and prenatal course. Here, we report the first case of prenatally diagnosed diffuse GUC resulted from patent urachus in a monochorionic diamniotic twin with selective intrauterine growth restriction. This case indicates that GUC is epigenetic and unrelated to multiple births.
由与脐尿管未闭相关的脐带水肿引起的长弥漫性巨大脐带（GUC）是一种极其罕见的异常情况。虽然弥漫性GUC患者似乎没有明显并发症且预后良好，但对其病因和产前病程知之甚少。在此，我们报告首例产前诊断为弥漫性GUC的病例，该病例发生在单绒毛膜双羊膜囊双胎且伴有选择性胎儿生长受限的情况下，病因是脐尿管未闭。该病例表明GUC是表观遗传的，与多胎妊娠无关。
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