Reanna Tillman was diagnosed with bone cancer a week before her 17th birthday. She had tumors removed from her leg and shoulder, and now the cancer is in her spine. Tillman had a baby girl, who she ...

Your clavicle, or collarbone, is the long, thin bone that connects your chest to your shoulder. You have one on each side of your body. These bones help hold up your shoulders and allow you to move ...