I had an ultrasound of my 26-week-old fetus and found a defect of bilateral ventriculomegaly of 11mm and 13mm and no transparent septum (agenesis of the corpus callosum). Doctor, can you tell me if a 26-week-old fetus has bilateral ventriculomegaly and no transparent septum, is it dangerous? Thank you, doctor.

Transfontanelle ultrasound is a method of measuring the size of the lateral ventricles, third ventricles and ventricular trijunction, helping to accurately diagnose ventricular dilatation in newborns.