We got great news! TJ's biopsy came back clean. They've determined that the mass is a polyp. Right now, we're deciding between surgery or letting him live with the mass in his mouth. It would be a risky surgery, but it's not much fun with a golf-ball- sized mass in your mouth either. So, decisions, decisions. All in all it's good news, though we have some thinking to do. Thanks for everyone who sent their concerns!