I went in for a bone scan for my foot to check for a stress fracture. They did a full body scan, just to be thorough. Strangely enough, they found a hot spot on one rib and one on my skull. After the bone scan results came back, the orthopedist I saw for the foot issue had some x-rays done on my rib and skull to look for any obvious signs of bone cancer. All X-rays were negative on the rib/skull, i.e. no fractures seen and no other "abnormalities". My question is what the heck may be the cause of those hot spots? I feel perfectly fine health-wise. FYI: I'm scheduling an appointment with my family doctor at the advice of the ortho. Better safe than sorry when it gets down to it. Thanks!