TSPAN9 and neoplasm: We identified 17 DEGs that corresponded between tumor vs normal and N0 vs N1 (TM4SF1, TM4SF4, TM4SF20, TSPAN5, TSPAN7, TSPAN8, TSPAN9,TSPAN12, TSPAN15, TSPAN17, TSPAN19, UPK1A, PRPH2, CD151, CD81, TSPAN33, and TMEM47; Figure 4A).