Immunotherapy in lung cancer : point of view of the pathologist

Abstract

Immunotherapy in lung cancer has been playing a key role. This role can be explained by the gain in term of survival without progression. The place of the PD-L1 testing is important to know. Because of the multiple clones available and the differrent systems available in pathology labs, it was important to present the last recommendations concerning PD-L1 testing in order to make pathologists and treating doctors aware of the major principles and the different limits.