Health / Medical Topics |
Parosteal Osteosarcoma
Definition 1
A low grade malignant bone-forming mesenchymal neoplasm arising from the surface of the bone. It usually affects the distal posterior femur, the proximal tibia, and proximal humerus. Painless swelling is the usual clinical sign. Most patients are young adults and the prognosis is usually excellent. (NCI Thesaurus)
Definition 2
A low grade osteosarcoma that arises on the surface of bone. (NCI Thesaurus)
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