文档介绍：长管状骨骨旁骨肉瘤的影像学诊断
【摘要】目的分析长管状骨骨旁骨肉瘤的影像学特点。方法分析11例长管状骨骨旁骨肉瘤,11例中8例发生在股骨,3例发生在胫骨。11例均拍X线平片,8例CT扫描,3例MRI扫描。结果发生在股骨的8例病例中X线表现为皮质旁放射状高密度影,边界欠清楚,局部软组织隆起。发生在胫骨的3例病例中X线表现为基底部附着于骨表面的骨性肿块,邻近骨皮质增生硬化,软组织内可见团状和菜花状不规则高密度瘤骨,其中1例与骨皮质关系密切病例可见到骨皮质与肿瘤骨之间有一透亮带。结论长管状骨骨旁骨肉瘤的影像学综合分析对临床诊断和手术有重要的指导作用。
【关键词】骨肉瘤;长管状骨;影像学
[Abstract] Objective To analyze the imaging features of longbone parosteal a. Methods 11 cases with longbone parosteal a were analyzed (8 cases on femur, 3 cases on tibia) Imaging materials included X-ray plain radiography(n=11), CT scan(n=8), MRI(n=3). Results 8 cases of parosteal a on femur showed high density liking emission aside cortex, boundary insufficiency and partly soft tissue bulge on X-ray. 3 cases of parosteal a on tibia showed bony tumor, which basilar part accreted surface of bone on X-ray, and vicinity cortical bone hyperplasia and harden, soft tissue mass with focal or cauliflower-like high density tumor bone in it. A lucent zone between the cortex and tumor bone was noticed in 1 case. Conclusion To aggregately analyze the imaging features of longbone parosteal a is significant for guiding clinical diagnosis and operating.
[Key words] osteogenic a; long tubal bone; imaging
骨旁骨肉瘤又称为皮质旁骨肉瘤,起源于骨膜或骨皮质邻近的成骨性结缔组织。肿瘤成分多样,瘤内可见纤维、类软骨和类骨成分分布。肿瘤生长缓慢,症状轻微,预后较普通型骨肉瘤好,但手术切除后,10%的肿瘤可退分化,恶性程度增加,侵及骨髓腔,甚至转移到肺部。我们收集河南省洛阳正骨医院近10年来11例长管状骨骨旁骨肉瘤病例进行回顾性分析,总结其影像学特点,以提高诊断水平。
材料和方法
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