My DS is getting an MRI right now to confirm or rule/out Juvenile Rheumatoid Arthritis. He started a couple of weeks ago with a swollen knee. No injury, no brusing, no fall - just swollen. We applied heat, ice, wrapped it, elevated it....but still swollen. doctor sent us to ortho....ortho called for X-rays...negative....now calling for MRI and consult with Pediatric Rheumatologist. I am so worried! And I don't even know what to wish for here...He has an inflamed joint without any injury. Bone fragments, strains, infection, Bursa-sac problems all ruled out. That leaves Juvenile Arthritis... or Cancer. Spare a prayer, please....if you can.