摘要
目的:分析脊索瘤的影像学特征及分期,探讨影像学方法在脊索瘤诊断及分期中的价值。方法:回顾性分析20例首发脊索瘤患者的21个肿瘤病灶的CT和MRI表现,术前进行影像学分期,并随访术后的复发情况。结果:发生在典型部位(颅底和脊柱)的脊索瘤17个(17/21,81.0%),少见部位的脊索瘤为4个(4/21,19.0%);90.5%(19/21)的病灶CT表现为膨胀性溶骨性骨破坏,71.4%(15/21)的病灶表现为膨胀性溶骨性骨破坏伴周围软组织肿块,具有MRI T2WI"蜂房征"的病例为90.5%;随着肿瘤分期级别的提高,复发率也提高。结论:脊索瘤的MRI表现具有特征性,可以诊断大多数脊索瘤,明确肿瘤范围,为手术切除及相关治疗提供客观依据,并且根据肿瘤的分期对肿瘤的复发及预后具有一定的预见性。
Objective：To investigate the value of imaging in the diagnosis and staging of chordomas by analyzing their image characteristics and stages.Methods：Retrospectively reviewed the MRI and CT appearances of 21 lesions in 20 patients with initial diagnosis of chordoma,and imaging staging before operation,followed the local recurrence after operation.Results：Seventeen（17/21,81.0%） chordomas located in typical region（skull base and vertebral）,4（4/21,19.0%） chordomas were in rare location.In CT 19（19/21,90.5%） chordomas showed expansive osteolytic bone destruction,15（15/21,71.4%） chordomas showed bone destruction with surrounding soft tissue masses.On MRI T2WI 90.5% chordomas showed honeycomb appearance.High local recurrence rate associated with advanced stage.Conclusions： Most chordomas with their location and margins could be correctly diagnosed pre-operation by MRI characteristics.MRI appearances also could provide objective basis for surgical resection and other therapy.Some prediction about local recurrence and prognosis may be taken on the basis of imaging staging.
出处
《中国临床医学影像杂志》
CAS
北大核心
2010年第12期863-866,共4页
Journal of China Clinic Medical Imaging
