I was sent to ER for severe dyspnea due to my tracheal stenosis . A CAT scan said I had osseous metastases, in a rib bone on my right side. How serious is this? I am in remission and am on Pomalyst for 21 days then one week off. Also Aredia and injections of Darzelex once a month. I have been doing fairly well despite two episodes of bronchitis. The tracheal stenosis continues to be a problem. What do they do for this bone problem?