软骨母细胞瘤的影像诊断价值

Imaging diagnostic value of chondroblastoma

目的:分析软骨母细胞瘤的影像学特征及诊断价值。方法:回顾性分析24例经病理证实的软骨母细胞瘤的影像学资料,其中24例均有X线平片,20例CT扫描,12例MRI检查。结果:24例中,X线表现为骨质破坏(22例),病灶周围硬化边(15例),病灶内明显的斑点状及片状钙化(14例)。20例CT均显示清晰骨质破坏及硬化边,伴有明显的斑点/片状钙化(18例),骨膜反应(5例)及周围软组织肿胀(9例)。12例MRI显示边界清楚的长T1、长短混杂T2信号,5例可见明显的骨髓水肿,3例显示骨膜反应,增强4例强化较明显。结论:软骨母细胞瘤的影像学表现多具有一定的特征性,综合分析X线、CT、MRI表现有助于正确诊断。

Objective：To evaluate the imaging features and diagnostic value of chondroblastoma.Methods：24 patients with histology confirmed chondroblastoma and prior imaging by the varity imaging examinations were seen.24 patients received plain radiography.20 patients were performed by CT and 12 patients were performed by MRI.Results：All of 24 cases,the X-ray manifestations were bone destruction（22） and sclerosis ring around it（15）,and stripe or spotty calcification（14）.CT showed clearly bone destruction and sclerosis ring in 20 cases,and obvious stripe or spotty calcification（18）;periosteal reaction （5） and swelling of soft tissue（9） were found.MRI showed clearly long T1 and long short mixed T2 signal intensity on 12 cases,clearly bone marrow edema（5） and periosteal reaction（3） were demonstrated.Synovitis occurred in 4 patient.Conclusion：The imaging features of chondroblastoma are of certain characterstic and the correct diagnosis can be made with X-ray in combination with CT and MRI.