管状骨和非管状骨部位软骨母细胞瘤影像特征分析  

Imaging features of chondroblastoma in tubular and non-tubular bones

作　　者：胡新杰[1] 黄满华[1] 黄劲柏[1] 李云[1] 

机构地区：[1]长江大学第一附属医院放射科,湖北荆州434000

出　　处：《医学影像学杂志》2015年第1期139-142,共4页Journal of Medical Imaging

摘　　要：目的探讨管状骨和非管状骨软骨母细胞瘤(chondroblastoma,CB)的影像学特征。方法回顾性分析经手术病理证实的25例CB的临床及影像学资料,临床资料包括患者的性别、年龄、大小、部位;影像特征包括病灶的边缘、分叶、钙化、皮质膨胀、骨破坏、骨膜反应、软组织成分,水肿及有无继发动脉瘤样骨囊肿。结果 25例患者均行X线检查,病灶呈溶骨型骨质破坏。其中16例位于管状骨的骨骺及骨端,7例病灶边缘清,9例病灶部分边缘清,5例有骨膜反应。另外9例发生于非管状骨,病灶边缘清8例,皮质膨胀8例。CT显示病灶呈圆形、分叶状软组织密度,伴有斑点状、条状或结节状钙化,病灶周边见边界不清的斑片状硬化。MRI显示病灶呈等T1混杂T2信号,病灶周边髓腔内见斑片状长T1长T2,增强扫描明显强化。发病年龄、病灶的边缘、有无皮质膨胀在管状骨和非管状骨之间有统计学差异。结论 CB的影像学表现多具有特征性,发生在非管状骨的病灶年龄偏大,病灶边缘更清,皮质膨胀较管状骨明显。Objective To study the image features of cartilage chondroblastoma （CB） in the tubular bone and non tubular bone. Methods We retrospectively reviewed the 25 medical records of the patients with CB, which was confirmed by surgical pathology. Clinical data included the patient＇s gender, age, size and location; Image features included the edge of the lesion, lobulated, calcification, cortical expansion, bone destruction, periosteal reaction and soft tissue composition, edema, and presence of secondary aneurysmal bone cyst. Results X-ray was performed in 25 cases of patients, lesion type was dissolved bone bone destruction. 16 cases located in the epiphyseal in tubular bone and bone end, 7 cases presented with well-defined edge, 9 cases with ill-defined eged, 5 cases with periosteal reaction. The other 9 cases occurred in the non-tubular bones, and 8 cases presented with well-defined edge, 8 cases with cortical expansion. On CT, the lesions were lobular-and-oval, density of soft tissue presented with stripe or spotty calcification, pathy sclerosis around and soft tissue swelling. On MRI, the lesions were iso-signal intensity on T1 and mixed signal on T2WI and FS T2WI, pathy long T1 and long T2 signal intensity around lesions. On contrast-enhanced scan, the lesions were shown obviously enhanced. There was statistically difference in the onset age, the edges of the lesion, the presence of cortical expansion between the tubular bones and the non-tubular bones. Conclusion The imaging findings of CB are characterized, occur in the non-tubular bone lesions, age is older. The lesions are well-defined egde and cortical expansion obviously than tubular bone.

关 键 词：软骨母细胞瘤 管状骨 非管状骨 影像诊断 

分 类 号：R738.3[医药卫生—肿瘤] R445[医药卫生—临床医学]