osteosarcoma
(redirected from periosteal osteosarcoma)Also found in: Dictionary, Thesaurus, Medical.
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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.