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- Multiple hereditary exostoses—In this rare inherited condition, numerous osteochondromas develop throughout the skeletal system often leading to bone deformities and an increased risk of cancer.
- Radiation treatment or exposure as a child
- Salter-Harris fractures
- A hard, bony lump that may be:
- Painless and not tender, but the tissue around it may become irritated and painful
- Enlarging in size
- A long bone that breaks with less than the usual amount of force
- Pressure on nearby structures, including nerves
Leave It Alone
American Academy of Orthopaedic Surgeons http://orthoinfo.aaos.org
Johns Hopkins University http://www.hopkinsmedicine.org
Canadian Orthopaedic Association http://www.coa-aco.org
Childhood Cancer Canada http://www.childhoodcancer.ca
Murphey M, Choi J, Kransdorf M, et al. Imaging of Osteochondroma: variants and complications with radiologic-pathologic correlation. Radiographics. 2000 Sept-Oct;20(5):1407-34. Available at: http://radiographics.rsna.org/content/20/5/1407.long. Accessed June 24, 2013.
Osteochondroma. American Academy of Orthopaedic Surgeons website. Available at: http://orthoinfo.aaos.org/topic.cfm?topic=A00079. Updated May 2012. Accessed June 24, 2013.
Osteochondroma. BoneTumor.org website. Available at: http://www.bonetumor.org/tumors-cartilage/osteochondroma. Accessed June 24, 2013.
Patient guide to osteochondroma. Johns Hopkins Medicine website. Available at: http://www.hopkinsortho.org/osteochondroma.html. Accessed June 24, 2013.
- Reviewer: Mohei Abouzied, MD
- Review Date: 05/2014
- Update Date: 00/52/2014