These often (and did in me) turn out to be benign polyps that can easily be removed in a simple surgery. They shrank mine with inhaled corticosteriods for a couple of months, then took it out in a 30 minute procedure. I even had a deviated nasal septum fixed at the same time, that I of course have had my whole life.

I tell you my story just to show you that sometimes things are not what we think, given our common predilection for anxiety attacks when something new comes up. I was scared to death when this showed up on a scan several years out.

I hope yours also turns out to be something benign that is easily dealt with.