Bone Cancer

Basic Definitions

Tumor - abnormal growth of tissue that forms when cells divide uncontrollably. May weaken bone and cause a break or fracture.

Primary Bone Cancer - cancer that begins in the bone:

  • Multiple myeloma- malignant tumor of bone marrow, most common primary bone cancer
  • Osteosarcoma- malignant tumor of bone. Most cases occur in teenagers, can occur at any age. Common locations are in the knee, hip, and shoulder
  • Ewings Sarcoma- malignant tumor of bone; most common locations upper and lower leg, pelvis, upper arm, and ribs. Most common age between 5 and 20 yrs, can occur at any age.
  • Chondrosarcoma- most common in hip, pelvis, shoulder, most common age 40-70


Benign bone tumors - many types, some of the most common

  • Non ossiffying fibroma
  • Unicameral bone cyst
  • Osteochondroma (exostosis)
  • Giant cell tumor
  • Enchondroma
  • Fibrous dysplasia