I hadn't seen your reply on ventriculomegaly, gweneynbee. I got very panicky and went to ground for a while.
I am very very sorry about your poor little son. What a terrible thing for you to go through, and I'm sorry that my post awakened painful memories. I am an occasional lurker on the June thread and have admired your courage in keeping your spirits up when I am sure you must have found this pregnancy difficult.
The MRI scan showed a cause for the ventriculmegaly: the baby has agenesis of the corpus collosum, which means that the main "junction box" for messages between the 2 sides of the brain is missing. We haven't had any invasive testing but from scans we are praying that the problem is isolated. There is a link between ACC and Edwards Syndrome but the baby is quite big, and most babies with chromosomal defects are small. If the ACC is isolated, the baby has an 85% chance of being normal, and a 155 chance of mental retardation, the extent of which we won't know for quite a wuile. At the moment the ventricles are 15 - 16mm. They will do one more scan at 36 weeks to see if the baby's head is still normal, I will go ahead with being induced at 38 weeks.
What has been hard to accept is that in my case, lightning, did strike twice. After Maisie died, all the medics assured me that I had an excellent chance of having an entirely normal pregnancy and baby. I am having counselling at the hospital which is a huge help, and people on here have been a big support.
I do hope the rest of your pregnancy goes well and that your baby brings you the joy you deserve.