摘要
目的:探讨上颌骨肿瘤和肿瘤样病变的CT诊断要点。方法:回顾性分析41例经病理证实的前述病变患者的CT资料。全组均行上颌骨轴、冠状位以5毫米层厚和层距CT平扫和增强扫描。结果:上颌骨良性肿瘤和肿瘤样病变多为类圆形边界清楚的骨质溶解,有硬化边,呈膨胀性生长,无邻近软组织肿块。相反原发性上颌骨恶性肿瘤则呈浸润性生长,骨质不规则破坏,大量瘤骨或瘤软骨形成、骨膜反应和软组织肿块等。上颌骨良性病变恶变征为体积迅速增大、病灶内出现新的肿瘤物质、边界不规则呈侵袭性。结论:CT能准确展示上颌骨肿瘤和肿瘤样病变的形态学和强化特点,结合临床多能做出正确诊断。
Objective: To study CT features of tumor and tumor-like diseases in maxillary bone.Methods:CT features of 41 patients with tumor and tumor-like diseases in maxillary bone proved pathologically were analyzed retrospectively.All the patients were performed axial and coronary plain and contrasted CT scanning in maxillary bone at section thickness and interval of 5mm.Results:Most of the benign tumor and tumor-like diseases in maxillary bone revealed round like,well defined bony destruction with sclerotic rim,expansive growth and no surrounding soft tissue mass.On the contrary,primary malignant maxillary tumor showed invasive growth,irregular bony destruction with massive bony or chondral tumor,periosteal reaction and soft tissue mass.Malignant transformation of the benign diseases in maxillary bone showed progressive enlargement of the lesion,new neoplastic materials within the lesion and irregular border with invasion.Conclusion:CT can accurately show the morphological and enhancement features of the tumor and tumor like diseases in maxillary bone.CT,together with clinical data,can make an accurate diagnosis.
出处
《放射学实践》
2002年第2期116-118,共3页
Radiologic Practice
关键词
上颌骨肿瘤
肿瘤样病变
CT
诊断
Neoplasma,maxilla Tumor-like diseases Tomography,X-ray computed