Some background: I have Chiari Malformation and was decompressed 13 years ago. At my fetal survey the tech noticed that baby’s cisterna magna is a tad small and may be a sign that they have the malformation too. I’m going to a high risk dr for a repeat ultrasound and better diagnosis on Tuesday but I’m wondering if anyone else has experience with this. Was your baby diagnosed with Chiari Malformation in utero? What was the rest of your pregnancy like?