医学
骨肉瘤
类骨质
放射科
活检
鉴别诊断
髓内棒
磁共振成像
初生骨
射线照相术
病理
外科
作者
Mark D. Murphey,Mark Robbin,Gerald McRae,Donald J. Flemming,H. Thomas Temple,Mark J. Kransdorf
出处
期刊:Radiographics
[Radiological Society of North America]
日期:1997-09-01
卷期号:17 (5): 1205-1231
被引量:250
标识
DOI:10.1148/radiographics.17.5.9308111
摘要
Osteosarcoma is the most common primary malignant tumor of bone in adolescents and young adults. It accounts for approximately 15% of all primary bone tumors confirmed at biopsy. There are numerous types of primary osteosarcoma, including intramedullary (high grade, telangiectatic, low grade, small cell, osteosarcomatosis, and gnathic), surface (intracortical, parosteal, periosteal, and high-grade surface), and extraskeletal. Osteosarcoma may also occur as a secondary lesion in association with underlying benign conditions. The identification of osteoid matrix formation and aggressive characteristics usually allows prospective radiologic diagnosis of osteosarcoma. As with all bone tumors, differential diagnosis is best assessed with radiographs, whereas staging is performed with computed tomography or magnetic resonance imaging. Understanding and recognition of the variable appearances of the different varieties of osteosarcoma allow improved patient assessment and are vital for optimal clinical management including diagnosis, biopsy, staging, treatment, and follow-up.
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