查询词典 benign

In this situation, however, benign may be a misleading term.

在这种情况下，不过， benign 可能是一个误导的任期。

Materials and Methods:236 pathology-confirmed breast lesions(155 malignanty,81 benignancy) and 221 disease-free contralateral breast tissues were examined using EPI-DWIb values=0,1000 s/mm~2TR/TE=8400ms/93.8ms; FOV=30×30cm;matrix=128×128;ASSET=2,slice thickness=4mm.DCE-MR imaging was also performed for accurate location of the lesion using VIBRANT sequence.The mean ADC values of malignant and benign lesions and the disease-flee contralateral breast tissues were calculated from the ADC map for each patient.One-way analysis of variance was applied to compare the mean ADCs of malignant lesions with benign lesions and disease-flee contralateral breast tissues.The threshold ADC value for malignant lesion was determined using a receiver operating characteristic(ROC curve analysis.Each lesion was classified into two major types:mass and non-mass lesion.The diagnostic performance of DWI was compared in breast mass and non-mass lesions.Results:155 malignant and 81 benign lesions were confirmed in 236 lesions.

材料与方法：搜集术前行乳腺MR检查并经穿刺或手术病理证实的236例乳腺病变，以对侧正常乳腺腺体作为正常对照，采用横轴位的平面回波-扩散加权成像序列，TR=8400ms，TE=93.8ms，层厚=4mm，激励次数=2：视野=30×30cm，矩阵=128×128，ASSET=2，b值=0和1000s/mm~2；参考动态增强图像准确定位，测量病变区和对侧正常乳腺腺体的ADC值，应用t检验比较良、恶性病变及正常腺体ADC值的差异，采用接收者工作特征曲线(receiver operating characteristic curve，ROC)确定良恶性病变的ADC界值；根据BI-RADS MRI将乳腺病变按照形态学表现分为肿块性病变和非肿块性病变两组，比较ADC值在肿块和非肿块性病变中定性诊断的效能。

There were 36 males and 40 females,with the average age of 47.7 years.36 patients presented with sciatica and perineal numbness,11 patients had painless mass and the other 20 were identified due to other causes.Among 67 benign neurogenic tumors,54 were originated from S1-S3 nerves,3 from S4-S5 nerves and 11 from the presacral space without caudal involvement.Giant cell tumor was found in 60 patients,which included 24 males and 36 females,with an average age of 32 years.Upper sacrum（S1-S2） was involved firstly.There were 56 patients（average,37.7 years） diagnosed as other primary benign bone tumors,which included 24 cases of teratomas,epidermoid cyst or dermoid cyst.Other malignant tumors,including chondrosarcoma （17）,Ewing′s sarcoma/PNET（14）,multiple myeloma（12）,lymphoma（6） and osteosarcoma（6） were found in 64 patients.

其中脊索瘤95例，男62例，女33例，平均年龄55.7岁，骶尾区疼痛是主要症状（82例），半数以上患者伴有坐骨神经痛，肿瘤多先累及低位骶骨（S3~S5）；神经源性肿瘤76例，男36例，女40例，平均年龄47.7岁，神经纤维瘤43例，神经鞘瘤24例，恶性神经鞘瘤9例，主诉多为坐骨神经痛、会阴部麻木（36例）和无痛性包块（11例），20例患者为查体或其他原因检查时发现，67例骶骨良性神经源性肿瘤起源于S3以上神经者54例，起源于S3以下神经者3例，发生于骶前未累及骶管者10例；骨巨细胞瘤60例，男24例，女36例，平均年龄32岁，腰骶尾部不适（37例）、坐骨神经痛（21例）是主要的临床表现，肿瘤多先累及上位骶骨（S1~S2）；骶骨其他原发良性肿瘤及瘤样病变56例，包括畸胎瘤、皮样囊肿、表皮样囊肿共24例；其他原发恶性肿瘤64例，包括软骨肉瘤17例，尤文肉瘤14例，多发性骨髓瘤12例，成骨肉瘤6例等。

In Doublespeak in America,Mario Pei says that the phrase is originally English(from 1839),when the Earl of Durham suggested that Canada,which had became strong and self-reliant 'through many years of benign neglect by the Britain,'should become self-governing.

Mario Pei在《美国的双关语》一书中考证道，benign neglect这一说法起源于英国。1839年Durham伯爵曾提议，'由于英国人多年的善意忽视，加拿大已逐渐强大，自给自足了。

Objective To assess the application of the center head hanging Dix-Hallpike test in the diagnosis of the benign paroxysmal positional vertigo of posterior semicircular canal.

目的 评价正中悬头位Dix-Hallpike诱发检查法在诊断后半规管良性阵发性位置性眩晕(benign paroxysmal positional vertigo， BPPV)中的意义。

CT perfusion images can visually show different traits of Hemodynamics of hepatic Benign and Malign pathology; No matter what background, various parameters of hepatic tissue around malign lesions had significant difference with far-end liver tissue, while various parameters of hepatic tissue around benign lesions had no significant difference with far-end liver tissue; Allopatric efficiency of hepatic Malign pathology distinctly went up with hepatocirrhosis background;Various parameters of hepatic Benign and Malign pathology had no significant difference and differential significance were no significant.

灌注参数图像能直观显示肝脏良、恶性占位性病变血流动力学的不同特点；无论在何种背景下，恶性病变灶周组织与远端肝组织各同种参数间有显著差异，而良性病变灶周组织与远端肝组织各同种参数间无显著差异，以上特点可以鉴别肝脏占位性病变的良、恶性；肝硬化背景下，恶性病变的发生率明显增高；正常肝组织背景下，良、恶性占位病变组织灌注参数间无显著差异，鉴别诊断意义不大。

Objective: To improve the knowledge of benign symmetrical lipomatosis.

目的：提高对良性多发对称性脂肪增多症（Benign symmetrical lipomatosis，BSL，又称Madelung病）的认识。

The mean ADC value of lymphomatous, metastatic and benign lymph nodes was (0.874±0.17)×10~(-3)mm~2/s,(0.98±0.09)×10~(-3)mm~2/s and (1.20±0.10)×10~(-3)mm~2/s. There was statistically different between benign lymph nodes and other groups (P=0.00). When an ADC value of 1.085×10~(-3)mm~2/s was used as a threshold value for differentiating malignant from benign lymph nodes, the best results were obtained with an sensitivity of 87.8% and specificity of 91.3%. 16 of 18 cases (88.9%) were accurately staged in accordance with clinical staging. For 24 patients after chemotheraphy or radiotheraphy, 4 cases were complete remission and WB-DWI was negative. WB-DWI was positive in 14 of 17 cases with recurrent or remnant tumor. For 3 patients with suspected partial remission, WB-DWI indicated necrosis in 2 cases and inactive in 1 case. Repeated WB-DWI examination was performed in 13 cases, tumors were eradicated in 6 cases, improved in 4, expanded in 2. A new colon carcinoma besides its primary lesion was found in 1 case. The results of WB-DWI were all concordant with other clinical tests.

以ADC值1.085×10~(-3)mm~2／s作为诊断恶性淋巴结病变的临界值，敏感性及特异性分别为87.8％和91.3％。88.9％(16／18)患者WB-DWI检查后分期与临床分期一致。24例淋巴瘤患者放化疗后行WB-DWI检查，4例临床疗效为完全缓解，WB-DWI检查均为阴性，17例临床确认有肿瘤复发及明显残留，WB-DWI显示为阳性的14例，另外3例常规影像评价为部分缓解的患者，WB-DWI检查提示2例病灶以坏死液化为主，1例病灶无明显活性。13例淋巴瘤患者行多次WB-DWI检查，发现6例治疗后病灶消失，4例缓解，1例原发病灶缓解，新出现结肠癌，2例淋巴瘤进展，皆与临床相符。

The positve rates in serous carcinomas and borderline tumors were 39.3% and 55.6%, significantly lower than that in benign tumors and normal ovaries (P.05), but the statistical differences were not found between borderline tumors and serous carcinomas, benign tumors and normal ovaries.2 WWOX mRNA and protein expression in ovarin seruous tumors2.1 WWOX mRNA expression in ovarin seruous tumors The result of RT-PCR showed that WWOX mRNA expression were detected in 29 of 32 ovarian serous benign tumors, 12 of 16 ovarian serous borderline tumors, and 21 of 45 ovarian serous carcinomas respectively.

阳性条带密度扫描定量结果，卵巢浆液性癌中PTEN蛋白表达相对量为0.34±0.12比正常卵巢和浆液性囊腺瘤和交界性囊腺瘤明显降低(p.05)，其余各组间无统计学差异。3.2.2 PTEN蛋白FCM检测结果FCM结果，卵巢浆液性癌PTEN蛋白表达的FI值(0.908±0.023)明显低于正常卵巢、卵巢囊腺瘤和交界性囊腺瘤的FI值，差异有统计学意义(P.05)。3.2.3 PTEN蛋白免疫组织化学结果35例浆液性囊腺瘤、18例交界性囊腺瘤和56例浆液性癌中，分别有31例、15例和29例呈阳性表达。

In other words, it may be benign, that is non-cancerous, and unable to spread to other parts of the body or recur.

在其他的话，它可能 benign ，即非癌变，并无法蔓延到身体其他部位或重演。

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。