Mri brain scan at 20 weeks shows hydrocephalus & brain damage?

Following my ultrasound showing fluid on the brain I was sent for an MRI scan. The results showed the left ventricle measurement was 18mm and right 12mm but there is also a sign of brain damage on the right and left temporal bones which would result in seizures, vision & hearing problems. Because of the damage this could have been the cause of hydrocephalus which will also result in baby having a shunt to maintain fluid circulation plus hydro can also cause more damage to brain. Has anyone experienced the same problems, because of the severity of the damage so far I have been advised to have a termination.