良性肿瘤

Up to now however, there has been no evidence that PET leads to improved management of patients in routine clinical practice. We did a randomised controlled trial in patients with suspected non-small-cell lung cancer, who were scheduled for surgery after conventional workup, to test whether PET with 18FDG reduces number of futile thoracotomies.

首先，在原发瘤的评估方面，其作用目前仅限于对单发肺内结节的良恶性鉴别，并且阳性预测值相对较低，在肿瘤可切除性评估方面的作用远逊于CT；更何况肺内良性肿瘤也需要手术切除，而那些不需要手术的病灶，比如活动性结核瘤及炎性肿物，PET 的假阳性率又太高。

But it is in and around benign submandibular gland tumor without blood signal.

颌下腺良性肿瘤内部及周边无或偶见点状血流信号。

Results Use this method to examine 90 cases fast specimen of breast neoplasm during operation,and contrast with pathologic diagnosis.the overall accuracy rate is 98.7%,among them there have 60 cases malignant tumor but have not one pseudo positive,and 29 cases benign tumor have not one pseudo negative,1 cases of undefined was diagnosed mucus adenocarcinoma by pathologic examination.

结果 该方法共检查乳腺肿瘤术中快速标本90例，与病理学诊断对照。准确率98.7%，其中60例恶性肿瘤无一例假阳性，29例良性肿瘤无一例假阴性，1例未定病例为粘液腺癌。

Suggested theories for the etiology of these lesions include congenital malformation of a displaced bronchial anlage, hyperplasia of normal lung tissues, cartilaginous benign neoplasia, and responses to inflammation.

本病的发病机制学说包括支气管原始细胞错位导致的先天性异常，正常肺组织的增生，良性肿瘤的软骨化，以及炎性反应。

Bcl|2 and bax were studied by strept avidin|biontin complex immunohistochemistry.results the expression rate of telomerase in breast cancer was significantly higher than that in precancerous breast(p＜0.01) and in breast benign tumors.

用原位杂交方法检测端粒酶的表达及其活性，采用免疫组织化学技术sabc法检测bcl|2和bax。结果端粒酶在乳腺癌中的表达率明显高于癌前病变（p.01）和乳腺良性肿瘤。

We extracted DNA from bronchial lavages cells and supernatants, and made a quantitative analysis of free DNA from supernatants, then analyzed hypermethylation of three genes in bronchial lavages supernatants and cells. Our objective is to investigate the possibility of bronchial lavages supernatants used in molecular biology diagnosis of lung cancer, and the value of hypermethylation of gene in the diagnosis of primary lung cancer.

本研究选取北京胸部肿瘤结核病医院收治怀疑肺癌患者78例，包括肺癌51例，其中鳞癌23例，腺癌20例，小细胞癌5例，腺鳞癌3例，中心型肺癌27例，周围型肺癌24例，男性32例，女性19例，平均年龄(57.1±13.5)岁，良性病变患者27例，其中肺结核17例，肺炎5例，肺部良性肿瘤5例，男性16例，女性11例，平均年龄(39.5±10.7)岁。

Results Benign tumor, such as aldosterone adenoma, cortisol adenoma, and pheochromocytoma, are generally of small volume, even density and clear boundary, on the contrast, the malignant tumors are usually anomalous, leaf-shaped and are of uneven density.

结果 醛固酮腺瘤，皮质醇腺瘤，嗜铬细胞瘤等良性肿瘤体积一般较小，密度均匀，且边界清楚；而恶性肿瘤表现为不规则，可呈分叶状，密度不均匀。

In particular, calcified nodules in the lungs or benign tumors called hamartomas may be identified on a chest x-ray and simulate lung cancer.

尤其肺部钙化结节或良性肿瘤称为瘤可确定了胸部X光及模拟肺癌症。

Immunohistochemical staning for VEGF-C,VEGFR-3 and CD 31 was performed in epithelial ovarian carcinomas, borderline tumors and benign cystadenomas.

应用免疫组织化学法，检测卵巢上皮癌、交界性肿瘤和良性肿瘤组织 VEGF－C mRNA和蛋白表达、VEGFR－3及 CD 31的表达。

Juvenile xanthogranuloma is characterized by single or multiple reddish-yellow, welldefined, oval and dome-shaped papules or nodules.

少年型黄色肉芽肿是由皮肤真皮层树突状细胞过度增生所导致的良性肿瘤。好发於1岁以内之婴幼儿。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。