Has anyone ever heard of the Cisterna Magna being enlarged. My dr never mentioned anything but when I got my chart it said the Cisterna Magna was abnormal. He looked into it and realized that it needed further investigation. I’m waiting to hear back from a specialist as to when I go and see him. Just wondered if anyone else had to deal with this and what the out comes we’re! My baby is coming in the 20th c section so I’m a little stressed as I just found this out today.