I read your story about your child just the other day. My neice is having the same experience. She just had a regular check up with the pulmonologist, they did an xray and they noticed it bleeding into the lungs. The doctors want to do a biopsy of the lungs but I am wondering why if she is bleeding into the lungs why would you have to do a biopsy on it. Why not see a cause for the bleeding. Was one of the test a biopsy for your child? I knew its a couple years later since you posted it but just by reading your passage gave me some hope. Please help me with the information you have. Thank you.