osteosarcoma

(redirected from periosteal osteosarcoma)
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Related to periosteal osteosarcoma: parosteal osteosarcoma

osteosarcoma

[¦äs·tē·ō·sär′kō·mə]
(medicine)
A malignant tumor principally composed of anaplastic cells of mesenchymal derivation. Also known as osteogenic sarcoma.
References in periodicals archive ?
There is a wide variation in the rates of high-grade tumors in the studies on periosteal osteosarcoma in the literature.
This may be seen as suggestive that chemotherapy is active against periosteal osteosarcoma. Of particular note, two of these four patients had tumor without evidence of medullary involvement which fits the more restrictive case definition of periosteal osteosarcoma applied in some studies.
The benefits of the use of chemotherapy in many childhood cancers outweigh the relatively small risk of a second malignancy, but should be raised as a concern in discussing the use of chemotherapy in patients with periosteal osteosarcoma where its utility has not been well proven.
Making strong recommendations regarding the utility of adjuvant chemotherapy of periosteal osteosarcoma is challenging owing to its rarity and the limited and varied data.
(12) Minic AJ: Periosteal osteosarcoma of the mandible.
In the author's own unit with experience of treating 42 radiation-induced bone sarcomas and 31 periosteal osteosarcomas, this current case was the only one common to both groups [3,11].
These tumors occur on the cortical surface and may appear somewhat like periosteal osteosarcoma on radiographic examination.