Fetal MRI confirms unilateral right ventriculomegaly. There are also several other abnormallities involving the right hemisphere. There is dysplastic, abnormally increased sulcation and asymmetric right periventricular grey matter contiguous with the basal ganglia. The left hemisphere has a normal appearance, with the degree of sulcation normal for gestational age.
There is mild enlargement of the right calvaria relative to the left.