2015年WHO发布了第4版肺、胸膜、胸腺及心脏肿瘤分类。与2004年WHO肺肿瘤分类相比，2015年分类做了较大变动。随着应用的深入，病理和临床医师对新分类的理解和应用在某些方面尚存在一定的困惑。本文对这一新的肺肿瘤分类进行学习，就2015年分类的主要变化做简要介绍，并就临床实践中所应该注意的问题进行分析和讨论。
In 2015, WHO released the fourth edition of the lung, pleura, thymus and cardiac tumor classification. Compared with the 2004 WHO lung tumor classification, the classification of 2015 made a greater change. With the development of the application, pathology doctors and clinicians still have some confusion in some aspects for the understanding and application of the new classification. This paper makes a brief introduction about the new classification of lung tumour, and briefly introduces the main changes of the classification in 2015, and analyzes and discusses the problems that should be paid attention to in clinical practice.
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