I choose Bone Cancer, which is an uncommon cancer that begins in thebone. It could develop in any bone in the body but most commonly affects thelong bone that makes up the arms and legs. Some types primarily occur inchildren while others affect adults. There are many forms of bone cancer.Types of Bone cancer :OstesarcomaChondrosarcomaEwing TumorFibrosarcoma and Malignant Fibrous HisticytomaGiant Cell Tumor of BoneChordomaPatients with bone cancer may experience such symptomsBone painSwelling and tenderness near affected areaBroken bonesFatigueUnintended weight loseDecreased mobilityIt's not certain what exactly causes bone cancer, but there are some inheritedgenetics passed through families than can increase you risk. Pagets disease canincrease development and also radiation can later on. Doctors do know that bonecancer begin as an error in a cell's DNA, the error tells the cells to grow anddivide in an uncontrolled way.