摘要
目的探讨颅骨胆脂瘤的CT表现,以提高其诊断正确率。方法回顾性分析15例经手术病理证实的颅骨胆脂瘤的CT表现。结果病变均为单发,14例起源于板障,1例发生于颅缝间。CT平扫均表现为颅骨局限性膨胀性骨质破坏,边缘可见硬化边,7例突破颅骨内外板,边缘呈火山口样改变。11例密度不均匀,其中6例病灶内存在斑点状钙化,1例以脂肪密度为主,2例以水样密度为主,2例以等密度为主;4例病变密度均匀。2例行增强扫描,均表现为轻度强化。多平面重组(MPR)、VR图像可立体直观显示骨质破坏的形态及程度。结论颅骨胆脂瘤的CT表现具有特征性,结合后处理技术可提高诊断正确率。
Objective To investigate the CT characteristics of skull chlesteatoma,and explore its diagnostic accuracy.Methods CT characteristics of 15 skull chlesteatomas confirmed by surgery and pathology were retrospectively analyzed.CT plain scan were performed in all the patients,while extra enhanced CT scan was done in 2 cases.Results On the CT images,all cases were solitary.14 cases originated from intradiploe,and one case from skull suture.Extensive destruction of the skull with hard margin was found in 15 patients.7 cases presented crater-form deossificatio.11 cases demonstrated inhomogeneous density in which 6 cases showed calcification.The fat-like density was noticed mainly in one case,the water-like density mainly in 2 cases,the iso-density mainly in 2 cases,and homogeneous density in 4 cases.MPR and VR images could display the shape and scope of destruction.2 cases showed mild enhancement on contrast CT.Conclusion CT scanning of skull chlesteatomas has some features,CT combining with post-processing techniques are very effective in the diagnosis of skull chlesteatomas.
出处
《山东大学学报（医学版）》
CAS
北大核心
2011年第11期57-60,共4页
Journal of Shandong University:Health Sciences
