ACC	Agenesis of the corpus callosum
AD	Atrial diameter
AP	Anteroposterior
BPC	Blake’s pouch cyst
CMA	Chromosomal microarray analysis
CMV	Cytomegalovirus
CNS	Central nervous system
CNV	Copy number variation
cfDNA	Cell-free DNA
CSF	Cerebrospinal fluid
DWC	Dandy–Walker continuum
DWM	Dandy–Walker malformation
ISUOG	International Society of Ultrasound in Obstetrics and Gynecology
MCM	Mega cisterna magna
MRI	Magnetic resonance imaging
MV	Mild ventriculomegaly
NDVA	Non-dilated ventricular asymmetry
NIPT	Non-invasive prenatal testing
PCR	Polymerase chain reaction
SMFM	Society for Maternal-Fetal Medicine
US	Ultrasound
VM	Ventriculomegaly
WAPM	World Association of Perinatal Medicine
WES	Whole-exome sequencing
WGS	Whole-genome sequencing