negative margin

For instance, when using flat-bottomed cutter to process curved surface, negative margin cannot be offered.

如在使用平底刀做曲面加工时, 不能给负余量.

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Introduction Surgical treatment has been the mainstay for extremity and trunk desmoid tumors with a negative surgical margin.

前言四肢及躯干韧带样瘤手术范围主要依据肿瘤切缘阴性。

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The recurrence rate and survival curve of the positive and negative margin group were compared;

比较切缘阴性组与阳性组的复发率、生存曲线；

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Border in all patients with negative margin rate: 100%. Lymph node metastasis: 82 patients with buccal squamous cell carcinoma surgery, according to the clinical TNM classification UICC 2002 years, divided into N categories: No: 52 cases, accounting for 63.4%.

全部病例术中边界切缘阴性率：100%。淋巴结转移率：根据UICC2002年的临床TNM分类，82例同期行颈淋巴清扫的患者中，No：52例，占63.4%。

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Whether these patients would have had a negative surgical margin with the open surgical technique is unknown.

开放性手术患者是否存在手术切缘阴性结果尚未明确。

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Capsular invasion of small extent may present the false negative appearance of smooth margin, while the fibrous adhesion may be mistaken as capsular invasion, resulting in false positive result.

较小范围的包膜受累仍可呈较光滑的边界，造成假阴性结果，而外表纤维素性粘连使外界不清易误为侵犯包膜，造成假阳性结果。

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Result: The positive percentage of telomerase activation was even higher in laryngeal nonmalignant mucosa distant toward surgically negative margin of carcinoma than in laryngeal carcinomas themselves ( P < 0.05).

结果：癌旁阴性切缘以外喉黏膜的端粒酶阳性率高于喉癌组织（P<0.05）。

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On Thursday, Nokia warned that the operating loss at its mobile devices unit would be larger than it had previously thought, saying it would post a negative margin greater than 3%.

后者上个月被谷歌收购。诺基亚周四警告说，移动产品部门的营业亏损将比之前估计的要大，该部门利润率将低于负3%。

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The medium follow-up time was 16 months. Among the 93 cases ( 2 with positive margin, 91 with negative margin) who received conization only, 1 case with clear margin recurred.

中位随诊16个月，仅行锥切术的93例患者（切缘阳性者2例、切缘阴性者91例），1例切缘阴性者复发（占1.1%）。

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Margin-negative patients with 1-year survival rate of 91%, 3 years was 67%, and positive patients were 30%, 10%. Analysis of impact on the rate of margin-positive factors, T1 tumors were negative on the margin.

切缘阴性患者1年生存率91%，3年为67%，而阳性患者分别为30%，10%。对于影响上切缘阳性率的因素分析；T1期肿瘤上切缘皆阴性。

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Only those who received negative resection margin could get long survival.

只有获得阴性切缘的患者才能获得长期生存。

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CONCLUSION: Presence or absence of nerve invasion, histological subtype, clinical stage, and positive or negative surgical margin are the independent factors affecting the prognosis of patients with adenoid cystic carcinoma of salivary glands.

结论：神经是否受侵、病理类型、临床分期、手术切缘是否干净是影响大涎腺腺样囊性癌患者预后的独立因素。

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Conclusion: Breast conservation therapy suits for each age and histology of early stage breast cancer. To confirm the negative margin, extend the excision extension have no help to improve the curative effect but to decrease esthetics effect.

结论：保乳治疗适合不同年龄、不同组织学类型的早期乳腺癌，在保证切缘阴性的前提下，扩大切除范围不提高疗效反而会影响美容效果。

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The characteristic of this method is negligible negative dumping margin on the basis of the grouping comparison with the export price and the normal value of products and tend to identify the existence of dumping, and artificially make dumping margin high.

这种方法的特点是在对产品的出口价格和正常价值进行分组比较的基础上忽略不计负的倾销幅度，倾向于认定原本不存在的倾销，并人为提高倾销幅度。

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