Here, a low positive correlation was found between DLL3 tumor expression and PD-L1 CPS (%) (ρ = 0.188; p = 0.04) (Figure 4A,C) as well as a low negative correlation with POLE nuclear expression (%) (ρ = −0.233; p = 0.016) (Figure 4A,D). Here, DLL3 is linked to neoplasm.