The IASLC Atlas of PD-L1 Immunohistochemistry Testing in Lung Cancer is a new resource for understanding programmed cell death ligand-1 (PD-L1) immunohistochemistry (IHC) assays. It is designed to help pathologists, clinicians, other health care personnel and patients better understand emerging programmed cell death ligand-1 (PD-L1) immunohistochemistry (IHC) assays.

Although this Atlas primarily aims to be a guide or resource for physicians and others involved in lung cancer diagnosis and treatment, it is hoped that this text may also eventually give patients a more comprehensive understanding of their current biomarker treatment options.