i fear my son may have a lung tumor. there is a lump on the (his) left side of his chest. it sticks out of the ribs and is somewhat squishy. on the right side of his chest there is a much smaller version of it. it has been there for nearly a year but we dont know what it is. he hasnt been showing any symptoms of cancer and has been acting fine. we have not gotten an mri yet but we still would like anyones input on what this could be.