Prenatal Sonographic Features of Patent Urachal
10.3969/j.issn.1005-5185.2025.03.015
- VernacularTitle:脐尿管未闭的产前超声特征
- Author:
Yan WANG
1
;
Hongmei DONG
1
;
Xiaohang ZHANG
1
;
Qian RAN
1
Author Information
1. 重庆市妇幼保健院(重庆医科大学附属妇女儿童医院)超声科,重庆 401147
- Publication Type:Journal Article
- Keywords:
Patent urachal;
Bladder diverticulum;
Urachal fistula;
Ultrasonography,prenatal;
Prognosis
- From:
Chinese Journal of Medical Imaging
2025;33(3):310-314
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To investigate the prenatal ultrasound features and prognosis of fetal patent urachal.Materials and Methods The prenatal ultrasound characteristics of six cases with patent urachal diagnosed in Women and Children's Hospital of Chongqing Medical University from September 2018 to March 2023 were retrospectively analyzed,their pregnancy and postnatal conditions were followed up.Results In the first and second trimester of pregnancy,the prenatal ultrasonography of six fetuses showed that the epurachus was occluded.Among them,two cases were diagnosed as bladder diverticulum.The ultrasonography showed that the bladder was malformed,the top of the bladder was changed like a beak,and was connected to the umbilical cord entrance of the abdominal wall through an abnormal tube.Four cases were diagnosed as urachal fistula with allantoic cyst.Ultrasound showed that the cyst was at the root of the umbilical cord,and the cyst communicated with the bladder through an abnormal duct.The size of the cyst changed with the filling and emptying of the bladder.Color Doppler showed that the cysts were surrounded by the umbilical artery.None of the six fetuses were abnormal by chromosome examination.Among them,two fetuses with simple urachal fistula and allantoic cyst were born with good prognosis,and the remaining four fetuses were induced by other malformations.One of the six fetuses was female,and five fetuses were male.Conclusion Prenatal ultrasound of patent urachus has typical features and low correlation with chromosomal abnormalities.It is more common in males clinically and has a good prognosis without other structural abnormalities.
