CNDP2 and neoplasm: The combination of baseline ctDNA status and N‐status is depicted in Figure 4D, showing cN2‐tumor with the highest frequency (85.0%, 17/20 for cN2‐, 75.0%, 3/4 for cN1‐ and 50.0%, 1/2 for cN0‐tumors) of baseline plasma ctDNA present.