My father had something very similar to what you described and eventually had surgery to remove it. In his case it was a giant cell tumor (if I'm remembering correctly). He ended up seeing an orthopedic doctor after his family doctor had been keeping an eye on it for several years.
However, I'm sure there are many possibilities for what it could be... and giant cell tumors aren't terribly common. I just think you should probably go to your GP or rheumy and be sure to mention this to them at your next appointment and see what they recommend.
Best wishes!
However, I'm sure there are many possibilities for what it could be... and giant cell tumors aren't terribly common. I just think you should probably go to your GP or rheumy and be sure to mention this to them at your next appointment and see what they recommend.
Best wishes!