At my 20 week scan today they found there was too much fluid in the brain (I think this was in the cisterna magna) and the brain also was not symmetrical (I think with the cerebellum). We have been referred to fetal medicine but they can't see us until next Tuesday, I don't know how we are supposed to go on until then not knowing. Has anyone else experienced similar? What was the outcome? It was such a shock today, our other scans have been fine and the screening tests were low risk.