Fetal Hemivertebra at 11 to 14 Weeks' Gestation.
2020
Hemivertebra appears as an angulation of the spine on a coronal section. We evaluated the prevalence of chromosomal defects and outcome of fetuses with hemivertebra detected in the first trimester over a 9-year period in a single tertiary referral unit. There were 10 cases; 9 had other anomalies. Seven couples opted for termination of pregnancy. One pregnancy ended in fetal demise at 16 weeks, and the 2 isolated cases continued the pregnancy with delivery at term. A karyotype analysis was performed in 8 fetuses: 5 found to be euploid and 3 having trisomy 18. Comprehensive ultrasound screening allows early prenatal detection and appropriate counseling.
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