Zhang G
School of Stomatology, Beijing Medical University.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1991 Mar;26(2):77-80, 126.
A new radiologic grading based on the comprehensive studies of radiographs of 76 cases of jaw bone sarcomas is suggested. Cortical expansion or sclerotic rim is regarded as grade 1, localized destruction with sharp edges as grade 2, moth-eaten destruction as grade 3, and diffuse destruction as grade 4. A close relationship exists between the rate of 5 year survival and the radiologic grading which is considered to be one of the four main X-ray criteria for evaluation of prognosis. The other 3 criteria are the extent of destruction, the tumor location, and the changes of the teeth and periodontal space.
基于对76例颌骨肉瘤X线片的综合研究，提出了一种新的放射学分级方法。皮质膨胀或硬化边缘为1级，边缘清晰的局限性破坏为2级，虫蚀状破坏为3级，弥漫性破坏为4级。5年生存率与放射学分级之间存在密切关系，放射学分级被认为是评估预后的四个主要X线标准之一。另外三个标准是破坏范围、肿瘤位置以及牙齿和牙周间隙的变化。
