Hello: I just wanted to say that I wish you all the very best in all categories. In auto-immune diseases, the inflammation can be such at times that it causes inflammation body wide, including blood vessels. This can leave behind calcified granulomas that show up on x-ray. These are remnants of old inflammation 'pockets' and are or can be quite common with inflammatory diseases. Your son will most likely pass this stage of rapid heart beats, but no one can say for sure because so many people respond differently. Just hang in there and know you'll always find support here. Have a great weekend and i'm glad you are finally on the right path for treating your child's illness. Best wishes, Della