摘要
目的总结不规则骨成软骨细胞瘤的影像特征。方法回顾性分析13例少见部位成软骨细胞瘤影像资料,其中男9例,女4例,年龄10～50岁。归纳其在不同影像检查方法下的表现特点。结果 13例病变中,肩胛骨3例、髋臼骨2例、足部跟骨4例、距骨3例、足舟骨1例;X 线平片检查13例,均表现为溶骨性病变,低密度10例,混杂密度3例,10例呈膨胀性。CT 检查11例,病灶边界不清3例,内部见钙化灶8例,病灶周围见骨质硬化缘10例,病灶内部见间隔4例,3例肿瘤周围见软组织肿块。MR 检查5例,T_2WI 表现为等、低信号,T_2WI 为不均质高信号,3例可见液-液平面及实体-液平面;1例行增强扫描,肿瘤实体部分呈轻度强化,间隔明显强化。结论不规则骨成软骨细胞瘤影像学表现不具特征性,但仍具软骨类肿瘤的共性特点,合理运用不同的影像检查方法有助于术前正确诊断。
Objective To review the radiological findings of the chondroblastomas on the atypical sites of the skeleton system. Methods We collected the total image data of 13 patients who were pathologically confirmed the chondroblastomas on the atypical sites of the bone system from the department of orthopedics in shanghai No. 6 hospital since 1991. Among all the patients, 11 cases were male and others were female. The range of age was 10-50 years and the average age of the patients was 26. 2 years old. A retrospective analysis of radiological signs from different diagnostic imaging modalities was made. Results X-ray examination was underdone on all case. On the plain X-ray films, all cases were lytic lesions. The radiolucent lesions were seen in 10 cases, mixed density in 3 cases. 10 cases manifested expansible contour. Eleven cases were performed computed tomography （CT） examination. On CT, there were visible calcification in 8 cases, sclerotic margin in 10 cases,internal septation in 4 cases. Soft masses could be seen in 3 cases. Magnetic resonance examination （MRI） was done on 5 cases. On T1 weighted images （T1WI）, the lesion was hypo and intermediate intense signal and heterogeneous hyperintense signal on T2 weighed images （T2WI）. The fluid-fluid level and solid-fluid level were seen on 3 cases. On one post-contrast examination, the moderate enhancement was seen on the solid portion of the tumor and however, the obvious enhancement on the septation within the lesion. Conclusion The radiological findings of the chondroblastomas on the atypical sites of the bone system were not suggestive. However, it could display some particular signs of the chondroid tumors such as calcification, septation, etc. To effectively apply the different imaging modalities can be helpful to make a right diagnosis before the operation.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2007年第9期952-955,共4页
Chinese Journal of Radiology
