Choroid plexus cyst

Hey November moms. I had my anatomy ultrasound done on Friday and my tech said she found a choroid plexus cyst. I am freaking out as I guess these can be an indicator of genetic disorders. Most commonly trisomy 18. My blood tests for genetic testing came back normal and they didn't notice any other indicators during that ultrasound. But I am being referred to a specialist to do a level 2 ultrasound. This is my second kid and my lil girl and I am just so nervous someyhing could be very wrong with her. Have any of you had experience with this and what was the outcome??