This study will be looking at biopsies taken from mediastinal lymph nodes and a blood sample from patients who have known or suspected metastatic lung cancer. These two samples will be compared using next-gen sequencing to explore if either sampling method offers better results.

This is an observational study that will analyze electronic health records data from real-world populations and settings in order to fully characterize the outcomes of Lung Cancer Screening with Low-Dowse CT scans.

The purpose of this study is to compare the effects (good and bad) of the different types of drainage in people receiving indwelling tunneled pleural catheters and the effect this has on pain during the drainage period.