[Lung Nodules Assessment--Analysis of Four Guidelines].

In the past 20 years, with the popularization of low-dose computed tomography (CT) screening, detection rate of lung nodules increased significantly. However, there are still many difficulties in making qualitative diagnosis for pulmonary nodules. The Lung nodule is a clinical common lung disease. The early onset for malignant nodules is quite hidden. Without early intervention, the course of disease can develop rapidly. For malignant nodules, the exacerbation can be very severe. Besides, the therapeutic effect can be unsatisfactory. If the lesion resection can be performed in early stage, lung cancer patients' prognosis can be improved significantly. At present, the guidelines of lung nodules' treatment are diverse, but these guidelines still can't reach a consensus until now. This article reviews the literature in National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines in Oncology for Non-Small Cell Lung Cancer (NSCLC), American College of Chest Physicians (ACCP) guidelines for the diagnosis and treatment of pulmonary nodules, Fleischner society lung cancer treatment strategy guide, and clinical practice consensus guidelines for Asia, which are pertaining to lung nodules diagnosis and treatment strategy and try to explain the similarities and differences between them.近20年来，随着计算机断层扫描（computed tomography, CT）技术的提高和肺癌高危人群筛查的普及，越来越多的肺部小结节被发现，然而肺结节的定性诊断仍有很多困难。肺结节是临床上一种常见的现象，恶性结节早期发病比较隐匿，如果不进行早期干预，其病程迅速、恶性程度强、预后差。如果能在早期阶段对病灶进行手术切除，将会明显改善肺癌患者的预后。目前针对肺结节的处理指南层出不穷，但各大指南均未达成统一的共识。本文拟对在国内影响最大的四个指南：美国国家综合癌症网络非小细胞肺癌（non-small cell lung cancer, NSCLC）临床实践指南、美国胸科医师协会肺癌诊疗指南、Fleischner-Society肺结节处理策略指南、肺结节的评估亚洲共识指南所推荐的肺结节诊断和处理策略进行介绍和分析。.