Dear Dr. My Son Age Is 16 Months. He Cannot

Dear Dr.
My son age is 16 Months. He cannot sit untill now. his C. T. Brain Plain report is as under:-


"Extra-axial CSF spaces are prominent in bilateral regions (left more than right) and inter-hemispheric region, suggestive of cerebral hypoplasia brain parenchyma is unremarkable.
Incidental finding of falx calcification.
No calvarial defect is seen.

Impression: Cerebral Hypoplasia"

please tell me about the detail as soon as possible.