What Is Dilated Lateral Ventricles?
What Is Dilated Lateral Ventricles? Ventriculomegaly is a brain condition that mainly occurs in the fetus when the lateral ventricles become dilated. The most common definition uses a width of the atrium of the lateral ventricle of greater than 10 mm. This occurs in around 1% of pregnancies. What causes dilated ventricles in the brain?