ERBB2 and neoplasm: Subsequent needle biopsy of the right lung mass confirmed the diagnosis of invasive lung adenocarcinoma with low programmed cell death ligand 1 (PD-L1) expression (tumor proportion score (TPS) < 1%) and harboring mutations in ERBB2 exon20 p.Y772_A775 dup with frequency of 79.98% and TP53 IVS9 c.993 + 2T with frequency of 69.52%.