Prenatal enlarged ventricles

I am 34 weeks pregnant with my 5th child.  I just returned from the Perinatologist who gave us bad news that the baby has "enlarged ventricles" which he doubts is agenesis with corpus collosum and maybe indicative of intraventricular bleeding. I am researching as much as I can on this and am really upset about this news.  Can someone assist me in better understanding what this could mean.  The dr. advised that when the baby is delivered (scheduled c section at 37 weeks) that the baby will undergo a battery of tests--I am looking for best/worst case scenarios as well as other questions I need to ask. THanks.