So last year I notice a mass on my last rib on my left side. I m older, this hasn t been the case. I don t remember breaking it, but who knows. But I already had cancer. So I go to the doc and have a scan. We don t know what it is says doc, but it isn t cancer. We can have it removed if it gets bigger or causes discomfort. Not being a surgery buff, I decide no to the knife. Recently I had to take care of my ailing nonegenarian father. To my amazement, both of his lowest ribs are protruding and disfigured as if mass has grown on them. I ask the nurses and they said they had not seen this before. I know he also didn t have that in youth. We were avid swimmers with large lung capacities. So, is this anything? Since my father was in his nineties, I am not as scared about it as before. Any clues?