Sclerosis of the bones of the pelvis due to prostate cancer metastases
|Classification and external resources|
Osteosclerosis is a type of osteopetrosis that involves abnormal hardening of bone and an elevation in bone density. It can be a pathology, normally detected on a radiograph as an area of increased opacity; that is, where more mineral is present in the bone to absorb or deflect the X-ray beam. Localized osteosclerosis can be caused by injuries that compress the bone, by osteoarthritis, and osteoma.
It is associated with:
- Prostate cancer metastasis
- Chronic idiopathic myelofibrosis
- Skeletal fluorosis
- Schnitzler syndrome
- Monoclonal IgM Kappa cryoglobulinemia
In the animal kingdom there also exists a non-pathological form of osteosclerosis, resulting in unusually solid bone structure with little to no marrow. It is often seen in aquatic vertebrates, especially those living in shallow waters, providing ballast as an adaptation for an aquatic lifestyle. It makes bones heavier, but also more fragile. In those animal groups osteosclerosis often occurs together with bone thickening (pachyostosis). This joint occurrence is called pachyosteosclerosis.
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- Houssaye, A. (2009). "Pachyostosis" in aquatic amniotes: a review. Integrative Zoology 4(4): 325-340.
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