. Parosteal bone lesions. OrthopaedicsOne Articles. In: OrthopaedicsOne - The Orthopaedic Knowledge Network. Created Jun 12, 2010 17:13. Last modified Sep 21, 2011 09:15 ver.4. Retrieved 2019-04-20, from https://www.orthopaedicsone.com/x/3g0CAg.
- Stress fracture
- Fracture callus
- Myositis ossificans
- Periosteal chondroma
- Parosteal osteosarcoma
- Periosteal osteosarcoma
- Parosteal chondrosarcoma
- Myositis ossificans is generally distinct from the cortex of the underlying bone. This may be best appreciated with cross-sectional imaging, such as CT.
- In osteochondromas, the cortex of the exostosis blends with the cortex of the underlying bone; the marrow cavity of the lesion is continuous with the underlying bone marrow.
- Parosteal osteosarcoma arises on the surface of the bone like a lump of plastacene.
- Periosteal chondroma seems to arise within the cortex, erodes into the cortex, and expands outward into the soft tissues.
- Periosteal osteosarcoma and chondrosarcoma generally have a soft tissue mass with matrix formation.