My neice is 10 years old, she had headaches, so the peditrician ordered an MRI. The MRI came back showing a right atrial choroid plexus cyst. all the information I find on this topic is pregnant women with that diagnose to their unborn children. Is this common for a 10 year old? What is the course of action? And could it be cancerous, is it genetic?

Concerned Aunt