结节型脑膜转移瘤CT表现及组织来源的探讨  

A study of CT manifestations and origin of nodulous meningeal carcinomatosis

作　　者：吴华超[1] 何旭升[1] 温志玲[1] 符有文[2] 王朝文 

机构地区：[1]广东医学院第二附属医院影像科,广东湛江524003 [2]广东医学院附属医院影像科,广东湛江524001 [3]广东省湛江农垦中心医院影像科,广东湛江524002

出　　处：《中国临床医学影像杂志》2013年第8期537-539,共3页Journal of China Clinic Medical Imaging

摘　　要：分析结节型脑膜转移瘤的CT影像表现及探讨结节型脑膜转移瘤的组织来源。方法:回顾性分析35例经手术病理、穿刺活检或CSF细胞学检查阳性证实为结节型脑膜转移瘤的病例,每例进行CT常规平扫和增强扫描。结果:35例结节型脑膜转移瘤的CT影像表现为位于颅骨内板下密度均匀的高密度影,边缘清楚。结节型脑膜转移瘤分结节状脑膜转移瘤和团块状脑膜转移瘤2型,结节状和团块状脑膜转移瘤伴颅骨破坏分别为6例(6/27,22.22%)和5例(5/8,62.50%),差异有统计学意义(P<0.05);结节状和团块状脑膜转移瘤为单发的脑膜转移瘤分别为5例(5/27,18.52%)和5例(5/8,62.50%),差异有统计学意义(P<0.05);并且结节状脑膜转移瘤和团块状脑膜转移瘤组织来源有明显不同。结论:结节型脑膜转移瘤CT影像表现具有特征性,CT是结节型脑膜转移瘤的重要检查方法。Objective： To analyze the CT imaging manifestations and investigate the origination of nodular meningeal carci- nomatosis （NMC）. Methods： Thirty-five cases with NMC confirmed by operation and pathology or positive CSF examination were analyzed retrospectively. All cases were examined by plain and contrast CT. Results： CT imaging manifestations of NMC： the lesions were homogeneously high density shadows under the inner table of the skull, the edge of the lesion was well-de- fined, the lesions enhanced markerly on contrast CT scan. NMC divided into tubercular meningeal earcinomatosis （TMC） and mass-like meningeal carcinomatosis （MMC）, there were 5 （5/8, 62.50%） patients accompanied with destruction of the skull in MMC group, while only 6（6/27, 22.22%） in TMC group（P〈0.05）, the solitary meningeal carcinomatosis of patients in 5 cases（5/ 27, 18.52%） in TMC was lower than that of in 5（5/8, 62.50%） in MMC group（P〈0.05）. There were obvious differences of the origination in TMC and MMC. Conclusion： CT imaging manifestations was characteristic of NMC, CT was an important exam- ination method for NMC.

关 键 词：脑膜肿瘤 体层摄影术 螺旋计算机 

分 类 号：R739.45[医药卫生—肿瘤]