Prenatal Sonographic Features of Heterozygous DLL1 Single-Nucleotide Variants and 6q27 Deletions: A Single Referral Center Retrospective Case Series.
OBJECTIVE To present the prenatal sonographic features and genomic spectrum of pregnancies with fetuses with a DLL1 single-nucleotide variant (SNV) or a pure 6q27 deletion. METHODS This was a retrospective study of 20 cases with a DLL1 SNV or a pure 6q27 deletion diagnosed by prenatal genetic testing. Clinical and la...