摘要
目的:探讨四肢原发性血管源性恶性肿瘤的影像学表现特点,提高其影像诊断水平。方法:回顾性分析11例经病理证实的四肢原发性血管源性恶性肿瘤的影像学表现。结果:11例四肢原发性血管源性恶性肿瘤中8例位于软组织,3例位于骨骼。位于软组织者的影像表现:X线平片及CT上病灶多表现为较大软组织肿块,3例瘤内可见点片状、条索样钙化影,3例侵犯相邻骨质;T1WI图像上肿瘤呈等信号或低信号,T2WI呈混杂高信号,增强扫描肿瘤呈明显不均匀强化。位于骨组织者的影像表现:2例为单发病灶,1例为多中心发病,2例X线可见地图样溶骨性骨质破坏,1例肿瘤呈皂泡状膨胀性生长,瘤内可见不规则钙化影;肿瘤呈等T1、长T2信号影,增强扫描肿瘤呈明显不均匀强化。结论:四肢原发性血管源性恶性肿瘤相对少见,其瘤内钙化、CT与MRI增强扫描表现对判定肿瘤起源有一定提示作用,确诊需依靠病理检查。
To explore imaging diagnosis of primary malignant angiogenic tumors of the extremities and to improve diagnostic skills.Methods：11 cases of pathologically proved primary malignant angiogenic tumors of the extremities were retrospectively analyzed.Results：In this group,eight cases occurred in soft tissue,three in bones.Those occurring in the soft tissue appeared as large soft tissue mass both on plain X-ray film and CT,three tumors had stippled,punctuate cal-cifications.Another three involved the adjacent bones.The tumors had isointensity to hypo-intensity on T1 WI and high sig-nal intensity on T2 WI with obvious heterogeneous enhancement.From the three cases in extremity bones.one was solitary and the other two had multiple foci.Bone destructions could present as well-defined map-like lytic lesion with cortical in-volvement or expansile multilocular osteolytic lesions appearing as soap bubbles.Irregular calcifications could be found.The MRI features were the same as those in the soft tisues.Conclusion：The primary malignant angiogenic tumors of the extremi-ties are relatively rare and further studies are required for correct diagnosis.Calcifications within the tumors and enhanced CT or MRI scan will help to determine the nature.The final diagnosis relies on pathological examinations.
出处
《放射学实践》
2014年第9期1079-1083,共5页
Radiologic Practice
基金
广东省科技计划项目(2012A032200011)
关键词
四肢
血管源性恶性肿瘤
体层摄影术
X
线计算机
磁共振成像
Extremities
Angiogenic malignant tumors
Tomography,X-ray computed
Magnetic resonance imaging
