Ultrasonic manifestations and outcome of fetuses with absent middle phalanx of the little finger
10.13929/j.issn.1003-3289.2024.07.020
- VernacularTitle:胎儿小指中节骨缺失产前超声表现及结局
- Author:
Yangyang LI
1
;
Renli LI
;
Danyang SONG
Author Information
1. 沈阳市妇婴医院超声二科,辽宁沈阳 110000
- Keywords:
fingers;
fetus;
ultrasonography,prenatal;
pregnancy outcome
- From:
Chinese Journal of Medical Imaging Technology
2024;40(7):1058-1061
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the ultrasonic manifestations and outcome of fetuses with absent middle phalanx of the little finger.Methods Data of 36 fetuses with absence of middle segment of the little finger displayed by the first prenatal ultrasound at 16-33 weeks of gestation were retrospectively analyzed.The prenatal ultrasonic manifestations,complicated abnormalities,the chromosomal karyotype results and the outcome of fetuses were recorded.Results Prenatal ultrasound showed 21 fetuses with bilateral absences of middle segment of the little fingers simultaneously with one or more other abnormalities,including 16 fetuses with cardiac malformations,8 with central nervous system malformations,5 with facial malformations,3 with abdominal anomalies and 6 fetuses each complicated with 1 other abnormality.Four of these 21 fetuses received chromosomal karyotype examination,including 2 were found with abnormal chromosomal number(1 of 21-trisomy syndrome and 1 of 18-trisomy syndrome)while the other 2 without chromosomal abnormality.Thereafter,induced labor was performed in 19 cases,while hands DR 3 months after birth displayed ossification centers of middle segment of bilateral little fingers in the rest 2 cases.Among other 15 fetuses prenatal ultrasound showed unilateral(n=2)or bilateral(n=13)absence of middle segment of the little fingers but without other abnormality and underwent chromosomal examination,induced labor was performed in 3 cases with fetal 21-trisomy syndrome,while the other 12 fetuses without abnormal findings were born with no flexion of the little fingers on physical examination,and hands DR 3 months after birth displayed ossification centers of middle segment of bilateral little fingers.Conclusion Displaying of fetal middle segment of the little fingers on prenatal ultrasound was affected by multiple factors,in addition,the ossification might be delayed,and might complicated with other systemic and chromosome abnormalities.Dynamically follow-up with prenatal ultrasound and comprehensively evaluation combined with clinical data was necessary for diagnosing fetal absent middle phalanx of the little finger.
