Bony growth

I got a reading about my x-ray- and found this interesting note.

Findings: Left total hip arthroplasty without dislocation, periprosthetic fracture, or definite periprosthetic lucency. Cerclage wire remains in place about the proximal femur. There is some heterotopic bone formation adjacent to the left proximal femur. Joint space is preserved at the right hip. Minimal sclerosis the pubic symphysis, likely degenerative in etiology. Skin staples have been removed from the left hip since the prior examination. Impression: Removal of skin staples. Left total hip arthroplasty without radiographic evidence of complication.

 I of course, googled for this and found that it occurs in men- for some reason bone starts growing in soft tissue.  In extreme cases, it can join two pieces of bone that weren't meant to be joined- such as the femur and pelvis.  For me, I can see a swirl of bone cells in my leg.  They're low down, below the cable, so they shouldn't matter.  I've also asked the doctor and my radiologist friend and both of them said not to worry.