One patient was identified from a whole-genome-sequencing dataset of Chinese lung adenocarcinoma patients and another one from lung adenocarcinoma project of The Cancer Genome Atlas consortium (TCGA–LUAD).32,33 These two patients harboured ERBB3–BCAR4 fusion and had no other genetic alterations in canonical oncogenes. Here, ERBB3 is linked to lung adenocarcinoma.