KRT20 and neoplasm: On univariate analysis, tumor diameter, histological grade, Borrmann type, invasivedepth, CEA, CA724, CA199, tumor emboli in the microvessels, preoperative CK20 inperipheral blood, postoperative CK20 in peripheral blood, and lymph node metastasis statusby H&E staining, pan-CK expression by IHC, and CK20 mRNA expression by qPCR weresignificantly associated with survival (Table 5).