Upper lobe preservation is not a challenge
We have particularly appreciated the interesting letter from Cohen and colleagues (1) with their comments about our recent paper (2). They underline the importance of the use of lung-sparing operations for the treatment of NSCLC in order to avoid pneumonectomy. In particular, the latter authors confirm our suggestion that even a particular and challenging-considered operation such as lower sleeve lobectomy can provide good short and long term results (3-6).