In this trial, 20 patients with lung cancer, 10 patients with asthma and 10 patients with interstitial lung disease who have to undergo bronchocospy for medical reasons are enrolled. In each patient, bronchoalveolar lavage is performed to assess PD1-lymphocytes.
The aim of this trial is to assess PD1-lymphocytes in bronchoalveolar lavage in patients with lung cancer, ILD and asthma.