The median serum CEA level (range) was 3.4 (0.5‐144.3) ng/mL, median serum CYFRA 21‐1 level (range) 1.2 (1‐38) ng/mL, median exonic mutation burden (range) 2.19 mt/Mb (0.1‐64.3), and median tumor purity 27.2% (20‐99.9). The gene discussed is CEACAM5; the disease is neoplasm.