Differentiating benign from malignant osseous tumors
نویسنده
چکیده
Johan L. bloem. [email protected] Key points -Radiographs supported by epidemiologic data remain the mainstay in differentiating benign from malignant osseous lesions. -MR adds to radiographs in differentiating benign from malignant cartilaginous tumors. -On dynamic MR enhancement of parts of a cartilaginous tumor within 10 sec. of enhancement of a feeding artery is a sign of chondrosarcoma. -Extracompartmental extension seen on MR is a sign of malignancy -Marked reactive changes seen on MR are not a sign of malignancy -MR is very accurate in differentiating benign from malignant soft tissue tumors, but in osseous tumors it adds only to radiographs in specific situations, mainly in diagnosing cartilaginous tumors.
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