Prenatal ultrasonic manifestations and outcomes of fetal spinal cord terminal central duct dilation
10.13929/j.issn.1003-3289.2024.11.005
- VernacularTitle:胎儿脊髓末端中央管扩张产前超声表现及其转归
- Author:
Beiyu JIAO
1
;
Lin LI
;
Wen GE
;
Taotao CHEN
Author Information
1. 青岛大学附属妇女儿童医院产科超声科,山东青岛 266034
- Keywords:
fetus;
spinal cord;
ultrasonography,prenatal
- From:
Chinese Journal of Medical Imaging Technology
2024;40(11):1651-1654
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the prenatal ultrasonic manifestations and outcomes of fetal spinal cord terminal central duct dilation.Methods Data of 8 fetuses with spinal cord terminal central duct dilation detected with prenatal ultrasound were retrospectively analyzed,and the ultrasonic manifestations and outcomes were observed.Results Prenatal ultrasound showed varying degrees of spinal cord terminal central duct dilation in all 8 fetuses.The cystic dilation area disappeared spontaneously in 4 fetuses,gradually increased in 1 fetus,continued to exist without significant changes in 1 fetus,the echo at the end of the expansion zone gradually changed from good sound transmission to uneven in 1 fetus,and the cystic expansion structure disappeared and the central duct end enlarged as a whole in third trimester in 1 fetus.Among 8 newborns,no significant abnormality was detected with physical examination in 6 cases,including 1 case of 1-month-old MRI showed fatty filum terminale and 1 case of 3-month-old MRI showed spinal canal cyst and fatty filum terminale,the other 2 cases were diagnosed as tethered cord syndrome and filum terminale fibrolipoma with physical examination and MRI.Conclusion Prenatal ultrasonic manifestations of fetal spinal cord terminal central duct dilation included cystic hypoechoic area of the spinal cord cone and adjacent structures,with clear boundaries and good sound transmission.However,the outcomes of fetal spinal cord terminal central duct dilation were somewhat different.
