Soft Tissue SarcomasSoft tissue sarcomas are cancerous tumors that begin in the soft tissues of the body such as muscles, fat, joints, nerves, and blood vessels. They are not common, accounting for about 1% of all cancers. It is estimated that ther

Giant Cell Tumor of BoneA giant cell tumor of bone is a type of benign (noncancerous) tumor that has a wide range of behaviors. These tumors typically grow at the ends of the body's long bones. Most often, they appear at the lower end of the femur

Bone TumorBone tumors develop when cells within a bone divide uncontrollably, forming a lump or mass of abnormal tissue.Most bone tumors are benign (not cancerous). Benign tumors are usually not life-threatening and, in most cases, will not sprea

Ewing's SarcomaEwing's sarcoma is a cancerous (malignant) tumor that usually begins growing in a bone. It occurs primarily in children and young adults, often appearing during the teen years.Although Ewing's sarcoma can develop in any bone, it us

EnchondromaEnchondroma (en-kon-DRO-ma) is a type of benign (noncancerous) tumor that begins in the cartilage found inside the bones. Enchondromas rarely cause pain or other symptoms, so most are diagnosed incidentally when X-rays are taken for an u

ChordomaChordoma is a type of cancerous (malignant) tumor that can occur in the bones of the spine and base of the skull. It is very rare, accounting for only about 1% of all malignant bone tumors.Although slow-growing, chordomas can be difficult

LipomaA lipoma is a benign (noncancerous) tumor made up of fat tissue. The typical lipoma is a small, soft, rubbery lump located just beneath the skin. They are usually painless and are most often found on the upper back, shoulders, arms, buttocks,

Fibrous DysplasiaFibrous dysplasia is a benign (noncancerous) bone condition in which abnormal fibrous tissue develops in place of normal bone. As these areas of fibrous tissue grow and expand over time, they can weaken the bone — causing it to fra