I had my anatomy ultrasound today, we originally had it scheduled a few weeks back but I wasn't…

I had my anatomy ultrasound today, we originally had it scheduled a few weeks back but I wasn't measuring 18 weeks. My midwife didn't call after that one. She called and left a message after this one and said everything looked great and the cyst that showed up on the last scan has dissolved. I knew nothing about this cyst, I'm not concerned about it but has anyone else experienced this?