重庆医学Issue(26)：3637-3640,4.DOI:10.3969/j.issn.1671-8348.2015.26.012
MRI 对四肢长骨高低级别软骨肉瘤的鉴别价值
MRI for differentiating high-grade from low-grade of limb long bone chondrosarcoma
摘要
Abstract
Objective To investigate the imaging differentiation between high-grade and low-grade limb of long bone chon-drosarcoma.Methods The MRI imaging features in 23 cases of pathologically proven limb long bone chondrosarcomas were retro-spectively analyzed,including 13 cases of low-grade and 10 cases of high-grade.The MRI imaging features including endosteal scal-loping lesion,cortical thickening,cortical destruction,bone expansion,soft tissue mass,bone marrow edema,soft tissue edema,calci-fication,hemorrhage,tumour maximal radial line and enhancing features were performed the statistical analysis.Results 13 cases were the low-grade chondrosarcomas,including atypical cartilaginous tumour and grade 1 chondrosarcomas,10 cases were high-grade chondrosarcomas (8 cases of grade Ⅱ chondrosarcomas,1 case of gradeⅢ chondrosarcomas and 1 case of dedifferentiated chondrosarcomas).Cortical destruction,soft tissue mass and soft tissue oedema had statistical differences between the low-grade and high-grade.Bone marrow had statistically significant difference.Calcification +(SC<1/3ST)had statistical difference between the low-grade and the high-grade.Calcification ++(1/3 ST<SC<2/3ST)had statistical difference.The diameter of maximal ra-dial line in the low-grade chondrosarcomas was (6.2 ±2.9)cm and which in the high-grade was (9.3±5.2)cm,showing statisti-cal difference between them.The speckling and sieving enhancement had statistical differences between the low-grade and high-grade chondrosarcomas.Conclusion In the MRI imaging features of chondrosarcoma,cortical destruction,soft tissue mass,bone marrow edema,soft tissue edema,bone marrow edema,calcification proportion,tumor maximal radial line and enhancing features can be valuable to differentiate low-grade from high-grade limb long bone chondrosarcoma.关键词
低级别软骨肉瘤/高级别软骨肉瘤/长骨/磁共振成像Key words
low-grade chondrosarcoma/high-grade chondrosarcoma/long bone/MRI分类
医药卫生引用本文复制引用
邓晓娟,张伟国,方靖琴,罗清雅,陈金华..MRI 对四肢长骨高低级别软骨肉瘤的鉴别价值[J].重庆医学,2015,(26):3637-3640,4.基金项目
重庆市研究生教育教学改革研究重点项目(Yjg110227)。 （Yjg110227）
