parosteal sarcoma
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parosteal osteosarcoma — a variant of osteosarcoma consisting of a slowly growing tumor that arises from the cortex of a bone and grows outward, eventually surrounding the bone; it resembles cancellous bone and is characterized histologically by a fibrous stroma… … Medical dictionary
Osteosarcoma — Classification and external resources Intermediate magnification micrograph of an osteosarcoma (center and right of image) adjacent to non malignant bone (left bottom of image). The top right of the image has poorly differentiated tumor. Osteoid… … Wikipedia
Osteosarcoma — A cancer of the bone that is most common in children. Also called osteogenic sarcoma. * * * SYN: osteogenic sarcoma. parosteal o. low grade o. arising on the surface of bone without involvement of the underlying marrow, usually occurring as a… … Medical dictionary
