Among the 35 patients with sufficient post-CCRT tumor material, PD-L1 expression in post-CCRT material was not significantly associated with RFS (PD-L1-positive group versus PD-L1-negative group, median 21.9 versus 22.4 months, p = 0.939, respectively) and OS (PD-L1-positive group versus PD-L1-negative group, median 85.1 versus 73.9 months, p = 0.784, respectively). Here, CD274 is linked to neoplasm.