查询词典 brain tumor

Since there is always an arachnoid membrane around the acoustic tumor, the tumor can be removed completely without any damage to the brain tissues.

由于听神经瘤周围有一层蛛网膜与脑组织间隔，所以有可能全切除肿瘤而不伤及脑组织。

METHODS摘要: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor. Chisquared test and t test were performed for statistic analysis.

方法摘要：病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并和坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

METHODS: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor. Chisquared test and t test were performed for statistic analysis.

病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并与坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

METHODS: Fourteen patients proved pathologically as brain abscess and 17 cystic/necrotic metastatic tumor underwent conventional MRI and DWI examinations. DWI signal and ADC value were evaluated in cerebritis stage, capsule formation stage, and evolution stage of brain abscess and compared with those of cystic/necrotic metastatic tumor.

病理及临床证实脑脓肿14例，坏死囊变脑转移瘤17例，经常规磁共振检查及弥散加权检查，在脑脓肿脑炎期、包膜期及吸收期进行弥散信号及ADC值的测量，并与坏死囊变脑转移瘤相比较，统计学分析采用χ2检验和t检验。

Neuroglia, the basic integrant of blood-brain-barrier is defective in brain metastatic tumor tissue, thus there is no blood-brain-barrier existing in brain metastatic tumor lesions.

脑转移癌组织缺乏构成血脑屏障的神经胶质膜，血管内皮也非均一的紧密连接，所以脑转移癌组织不存在完整的血脑屏障。

Week. Conclusions The S1 area brain glioma model established by this method in rats had the same characters as human brain glioma. The tumor growth period was short and the subsisting period was stable without extracerebral metastasis and extracranial extension. This model is suitable for laboratory and treatment study of brain gliomas.

该方法建立的S1区脑胶质瘤模型具备与人脑胶质瘤生长相似的特性，肿瘤形成时间短，生存期稳定，且无脑外转移和颅外扩散，适合各种脑胶质瘤实验治疗研究。

The supraorbital approach requires a much smaller skin incision, but could provide sufficient operating space in the suprasellar region for tumor removal which not only makes excellent surgical exposure for tumor and other structure in sella region and diminish brain retractionand tissue trauma, but also benefits for total excision of craniopharyngioma. So it is an effective and safe operative approach for tumor in the sella region.

眶上锁孔入路切口小，能提供鞍上区足够的手术空间，足以显露鞍区病变及其邻近结构，且减少了脑牵拉和手术创伤，有利于颅咽管瘤的全切除，是一种安全有效的处理鞍区病灶手术入路途径。

Results:Three important MRI feat ures of brain stem gliomas were found:①enlargement of brain stem contour.Using different sequences and planes the precise tumor location could be obtained.Sagittal scan could well display the early stage of brain stem glioma,the tectal glioma and cervicomedullary junction glioma.

结果：MRI表现有以下3个特征：①肿瘤使脑干的外形增大，通过不同序列和断面显示肿瘤的精确部位，矢状面对于显示胶质瘤的早期改变、顶盖部位及延髓颈髓联合部位的胶质瘤具有独特作用。

Nowadays, n stem-like cells have been found, which exist in the tumors of some tissues, such as haematogenesis system, brain, lung, mammary gland and so on. We defined them as tumor stem cells for their similar characteristics to the normal stem cells, but they are a minor population of tumor cells and the origin of them may be tumor cells.

随着对干细胞的研究不断深入，使人们对肿瘤的发生机制重新进行了审视，并在造血系统、脑、肺、乳腺等部位肿瘤中发现极少量的具有与干细胞非常类似生物学特性的细胞，称之为肿瘤干细胞，它们很可能是肿瘤细胞的起源。

"We found that the risk of brain tumor was higher for people living in rural areas than in towns," said Professor Lennart Hardell, of University Hospital in Orebro, Sweden.

瑞典Orebro大学医院的教授Lennart Hardell说：&我们发现，居住在农村地区的居民患脑瘤的危险要比城市居民高。&

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。