摘要
目的:通过分析脑星形胶质细胞瘤的CT表现与手术、病理分级间对应关系,探讨CT表现的病理基础。方法:报道82例脑星形胶质细胞瘤的CT、手术、病理分级对照资料,并将病理分级分为3组:良性组(Ⅰ～Ⅱ级)16例,交界组(Ⅱ级)31例,恶性组(Ⅱ～Ⅳ级)35例,对3组间肿瘤大小、密度、水肿、强化程度、钙化、出血、囊变坏死等CT表现进行对照研究。结果:肿瘤的大小、钙化、血供、边界情况3组间无显著性差异;而肿瘤密度、瘤周水肿、强化程度及类型、瘤内囊变坏死、肿瘤硬度等3组间或两组间(良性组与交界组合并为一组)则存在显著性或高度显著性差异,其中恶性组趋向于呈混杂密度、中?重度混杂强化、中?重度瘤周水肿、瘤内多见坏死囊变、肿瘤硬度偏软等特征,良性组则相反。结论:不同病理分级的脑星形胶质细胞瘤的CT表现各有其特点,可作为肿瘤分级提示性诊断的依据。
Objective:To discuss the pathological basis of CT manifestation of cerebral astrocytoma through analyzing the correlation of CT manifestation with surgery and pathology.Meth ods:Eighty-two cases with cerebral astrocytoma were report-ed.The CT features were correlated with the findings of surgery and pathologic data.The cases were divided into3groups by pathological classification:benign group(gradeⅠ～Ⅱ)16cases,borderline group(gradeⅡ)31cases and malignant group35cases (gradeⅡ～Ⅳ),CT manifestation of the tumor such as size,density,edema,enhancement,calcification,hemorrhage,cystic infarct,and border were correlated contrast with the three pathological groups.Re sults:Among the three groups,there was not significant difference in size,calcification,perfusion and border situation;but obvious or highly obvious difference lay in the three or two groups(benign group and borderline group are combined into one group)in mass density,surrounding edema ,degree and type of enhancement,cystic infarct and stiffness,etc;That is,in malignant group the tumor tended to be mixed density,moderate or high degree of mixed enhancement,moderate or severe edema around the mass,cystic infarct often seen in the mass and the texture of the tumor tended to be soft,etc.In the benign group it was just the opposite.Con clu sion:Cerebral astrocytoma of different pathological grade have different characteristics on CT,which may act as a basis that CT manifestation may suggest the grading of tumor .
出处
《中国临床医学影像杂志》
CAS
2003年第4期240-243,共4页
Journal of China Clinic Medical Imaging
