Approximately four years ago my father started feeling pain in the sternum area.
He used heat packs and ice and mild pain relievers and it kept it under control. Approximately two years ago the pain became worse. At that point he saw a specialist and that specialist thought it was due to rib that had been broken which was pushing on a nerve and that caused the pain.
Consequently my father had this troublesome rib removed... They also checked lymph nodes for cancer and things like that.
The pain did not disappear.
And within a few months the spot on his chest became warm to the touch and was usually redder than the skin around it.
At that point various tests were done on the sternum and it was found to resemble "swiss cheese". It looked like something had been gnawing on it.
The most damaging thing was that it appeared that cancer was in present in the area also.
From that point on things went down hill quickly. He soon had tumors develop within the lungs and the bladder. Both of those tumors were "small cell" cancer, which of course is highly aggressive.
My father passed away a little more than a week ago. The tumor in the sternum had become very large at his time of death-- but it was the tumors in his lungs that eventually killed him.
Most doctors in this area had never seen anything quite like it (the tumor in the sternum area).
There are several unanswered questions about it all. We don't think that the cancer had been present for the last four years. Not small cell cancer, that's way too aggressive. And my father never had that "cancer look" until really the last 6 months of his life.
But something did trigger cancer in that area and something did attack his sternum.
My uneducated guess is some form of candida yeast fungus. Candida yeast is growing problem in this country due to our poor diets and other factors. Candida yeast is tied by many experts to not just gas and bloating but other things like nail fungus, sinus problems and athlete's foot.
My father had both digestive problems and horrible nail fungus on both his fingers and his toes.
My feeling (after researching it all) is that this candida yeast fungus attacked the soft sternum... eventually weakening it to a point where it made it an easy target for small cell cancer. My father was a smoker for close to 40 years. It seems likely that the small cell cancer was contributed to greatly by the smoking. The cancer then attacked his sternum and lungs (he'd had lung issues for several years prior to the cancer).
This whole sternum pain/lump problem thing is very interesting and it seems very elusive when it comes to the medical community as a whole.
Like I said my father suffered from pain there for the last four years of his life and it eventually helped contribute to his death. I wish there was more out there on health issues dealing with the sternum.