摘要
目的探讨神经节细胞胶质瘤的MRI表现特征及与患者年龄的关系。资料与方法回顾性分析经手术病理证实的12例神经节细胞胶质瘤的MRI表现特征,比较不同年龄对MRI表现的影响。结果12例肿瘤均位于幕上大脑半球表浅部位。其中,位于颞叶6例,顶叶3例,额叶2例,枕叶1例;5例呈囊性伴有强化壁结节,4例显示局部脑回明显增厚并轻度强化或无强化;10例无或仅有轻度瘤周水肿。年龄<15岁者,肿瘤最大径为4.3～6.7cm,平均(5.6±1.2)cm,表现为囊性并壁结节3例和脑回增厚1例,无实性并中心囊变坏死者;年龄>15岁者,肿瘤最大径为2.1～7.0cm,平均(4.8±1.4)cm,表现为囊性并壁结节者2例、脑回明显增厚者3例、实性并中心囊变坏死者3例。结论神经节细胞胶质瘤MRI表现具有一定特征,患者年龄对MRI表现有一定影响。
Objective To discuss MRI features of cerebral gangliogliomas and its relationship with age. Materials and Methods The MRI findings of 12 cerebral gangliogliomas surgically approved were analyzed retrospectively, the relationship between age and pathologic classification were compared. Results All the tumors were located in the supratentorial superficial hemispheres. 6 tumors were in temporal lobe, 3 tumors were in parietal. 2 in frontal lobe and 1 in occipital lobe. Circumscribed cyst with an enhanced mural nodule were showed in 5 tumors, obviously thickened gyri with slightly or no enhangcement were revealed in 4 tumors. Slight or absent of peritumor edema were demonstrated in 10 tumors. The patient age was younger than 15 years, the maximum diameter of tumor was 4.3 ～ 6.7 cm, average （5.6 ± 1.2 ） cm, circumscribed cyst with mural nodule in 3 cases and thickened gyri in 1 case without central necrosis; the patient age was older than 15 years, the maximum diameter of tumor was 2.1 ～ 7.0 cm,average （4.8 ± 1.4） cm, circumscribed cyst with mural nodule in 2 cases, thickened gyri in 3 case and central necrosis in 3 cases. Conclusion Cerebral gangliogliomas have certain characteristic MRI features, age and pathologic classification affect MRI appearance.
出处
《临床放射学杂志》
CSCD
北大核心
2008年第11期1460-1463,共4页
Journal of Clinical Radiology
