TSPAN8 and lung adenocarcinoma: Thirty‐two genes (GRAMD3, SYNGR1, CMTM7, HLA‐DMB, HLA‐DRB4, CLEC2D, CCNB1IP1, HLA‐DRA, DEFB1, ERBB2, MUC4, LOC145837, RPS24, RHOD, HBEGF, ARHGDIB, PITPNC1, PEA15, KRT16, GJB3, JUN, FHL2, CYB5R2, HLA‐B, EGR2, HERC6, DUSP5, HBA2, CHST15, NKX3‐1, LBH, TSPAN8) are common in hypopharyngeal cancer and EGFR‐mutated lung adenocarcinoma.