Hi there @Sue_w...I had a bilateral mastectomy with node clearance on the left and sentinel node on the right. Because I was unable to have radiotherapy, due to another medical condition, the surgeon too it right down as far as she could. I was left with a large concave area between my sternum and armpit on the left, but with a hard raised area over the sternum, my little camel hump, I call it. I also had the muscle that goes from the chest to the upper inner aspect of the shoulder go very stiff and shortened, causing limited shoulder movement. The doctors and physios are unsure if this was caused by surgical irritation to the area, or the after effects of a large haematoma which I had for months on that side, or if it's from the same medical condition that prevented me from having the radiotherapy....systemic scleroderma. Either way, I would get it checked sooner rather than later, as it will just worry you. Ally.