Conversation: The conversation between human and AI assistant.
[|Human|] Hi, so I noticed that near my sternum on the left side of my chest right under my collarbone bulges  out just a little bit more than my right side. When I flex the slight bulge gets hard and when I relax it gets soft , it acts just like my muscle,  should I be concerned that its uneven from my right side of my chest?
[|AI|]  Hi there, A painless lump coming from the bone is an Osceola and usually isn't anything to worry about. If it's coming from the tissue, then its most likely a lipoma which is just a fatty ball of tissue. If you want to be absolutely sure, you can have the mass biopsied or even removed. The location doesn't sound too difficult, so I'd recommend seeing a general surgeon to have it removed. I hope I have answered your question. Feel free to contact me if you have any further questions.