The risk for any neurodevelopmental problems depends upon the underlying reason that your baby has ventriculomegaly and hypoplasia of the vermis. There are times when the findings are variations on
normalNormal saline flush development of the brain, and other instances when the findings are indicative of abnormal brain development in general. The more severe the findings, the higher the risk of underlying problems.
In many of these cases, it is very difficult to assess the risk for long term neurodevelopmental problems until after the baby is born. At that time, a careful physical examination and higher resolution imaging, including repeat ultrasound or MRI, can be performed. You might want to discuss consultation with a pediatric neurologist after your baby is born.