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Resources for Bone Disorders

Avascular Necrosis

Detailed information on avascular necrosis, including causes, risk factors, symptoms, diagnosis, and treatment

Anatomy of the Bone

A typical bone in your body contains three types of tissue—a hard outer tissue, a sponge-like inner tissue, and smooth tissue at the ends.

Bone Cancers

Detailed information on bone cancers, including chondrosarcoma, ewings sarcoma, myeloma bone disease, multiple myeloma, and osteosarcoma

Bone Disorders

Detailed information on bone disorders, including avascular necrosis, fibrous dysplasia, osteogenesis imperfecta, osteomyelitis, Paget's disease of the bone, and primary hyperparathyroidism


A chondroblastoma is a rare type of benign bone tumor that originates from cartilage.


Chondrosarcoma is a malignant type of bone cancer that primarily affects the cartilage cells of the femur, arm, pelvis, knee, and spine.


Enchondromas are the most common type of hand tumor. Although they may affect people of any age, they are most common between ages 10 and 20.

Ewing Sarcoma in Adults

Ewing sarcoma can occur in any bone, but is most often found in the extremities and can involve muscle and the soft tissues around the tumor site.

Fibrous Dysplasia

Fibrous dysplasia is a chronic disorder in which bone expands because of abnormal development of fibrous tissue.

Giant Cell Tumor

Giant cell tumors most often appear in the knee, but they can also involve the bones of the arms and the legs, or the flat bones such as the breastbone or pelvis.

Primary Hyperparathyroidism

Primary hyperparathyroidism is a metabolic disorder in which the parathyroid glands produce too much hormone, which can result in the loss of bone tissue.

Multiple Myeloma

Myeloma bone disease is cancer that affects certain white blood cells called plasma cells.

Osteogenesis Imperfecta

Osteogenesis imperfecta is also known as brittle-bone disease because it is characterized by bones that break easily without a specific cause.


Osteochondroma is an overgrowth of cartilage and bone near the end of the bone near the growth plate.


Osteomyelitis is an inflammation or swelling of bone tissue that is usually the result of an infection.


Osteosarcoma usually affects the long bones around the knee. It occurs most often in children, adolescents, and young adults.

Topic Index - Bone Disorders

Detailed information on the anatomy of human bones and the most common bone disorders, including avascular necrosis, fibrous dysplasia, osteogenesis imperfecta, osteomyelitis, Paget's disease of the bone, primary hyperparathyroidism, bone cancer, chondros

Treatments for Bone Disorders

Detailed information on the most common treatments used for bone disorders, including radiation therapy, surgery, amputation, bone graft, osteotomy, and arthroplasty (total joint replacement)

Benign Bone Tumors

Detailed information on the most common benign bone tumors, including chondroblastoma, enchondroma, giant cell tumor, and osteochondroma

Osteomyelitis (Bone Infection)

Osteomyelitis is the medical term for a bone infection. Bone infections are caused when a break in the skin allows germs, usually bacteria, to spread into bone tissue. Bacteria can also spread from infections in other parts of the body by traveling through the blood to infect a bone.
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