The pathological diagnosis was squamous cell carcinoma (the left upper lobe bronchus), grade II; epidermal growth factor receptor, anaplastic lymphoma kinase, proto-oncogene 1 receptor tyrosine kinase, and other driving genes were negative; The programmed death ligand 1 (PD-L1) (SP263) tumor cell proportion score was positive for tumor cells (≈60%). Here, NTRK1 is linked to neoplasm.