Editorial on comparison between stereotactic body radiotherapy and surgery in early stage NCSLC by Scotti et al.

Lung cancer is the increasing trend in the world with the exception of some of the countries such as the United States and the UK and is the number one cause of cancer death. Recently, early stage non-small cell lung cancer and isolated lung tumor not larger than 3 cm in size have increasingly been discovered due to the widespread use of medical examination such as computed tomography (CT). The frequency of isolated lung tumor larger than 3 cm in size whose pathological diagnosis cannot be determined for a variety of reasons and which is diagnosed clinically as primary lung cancer has been increasing year by year with the increase in the elderly.