Table 1

Reasons for the use of BAL fluid analysis as a method of evaluation of immune status of lung cancer patients

The material is available in each state of advancement and in different histological types of lung cancer, both non-small cell lung cancer and small cell lung cancer
BAL may be performed during diagnosis, before treatment, and may be used to monitoring of treatment and complications
The method is well standardised and reproducible, and the results can be compared between different centres
The different types of inflammatory cells and their mediators can be recognised in BAL material, and may be used for immunoscoring
Cancer cells may be identified in BAL fluid in the case of peripheral tumours
The results of many studies confirm the significance of that method