Osteoblastoma
A noncancerous tumor in bone tissue. Osteoblastomas are small and are seen most frequently in children and young adults. Symptoms include pain and bone-mass reduction. Treatment includes surgery, sometimes followed by chemotherapy.
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- Osteochondritis dissecans
A condition in which a fragment of bone in a joint is deprived of blood and separates from the rest of the bone, causing soreness and making the joint give way. Diagnosis is made via X-ray. Treatment usually involves casting, although if the fragment has detached completely, arthroscopic surgery may be necessary. Abbreviated OCD and […]
- Osteochondroma
An abnormal, solitary, benign growth of bone and cartilage, typically at the end of a long bone. Osteochondromas are usually discovered in persons 15 to 25 years of age and are the most common benign bone tumor. An osteochondroma is typically detected when the area around it is injured or when it becomes large.
- Osteochondromatosis
A condition that is characterized by multiple benign tumors of cartilage, called osteochondromas, projecting from bone, most often from near the ends of long bones. In a small proportion of cases, an osteochondroma may become malignant. Also known as multiple exostoses. The condition can be hereditary, in which case it is called hereditary multiple exostoses […]
- Osteochondromatosis, synovial
A disorder of a joint featuring a change of the normal joint lining (synovium) tissue’s cellular structure to form bone-cartilage tissue. Synovial osteochondromatosis is uncommon. It typically presents in young to middle-aged adults. Synovial osteochondromatosis leads to pain in the affected joint as well as limitation of the range of motion and often locking. The […]
- Osteochondrosis
Any disease that affects the progress of bone growth by killing bone tissue. Osteochondrosis is seen only in children and teens whose bones are still growing.