CD274 and colorectal carcinoma: Regarding CRC, epithelial IRS ranged from 0 to 12 with a mean ± SD of 5.60 ± 4.62 and 57 cases (55.3%) showed high IRS and PD-L1+ TILs IRS ranged from 0 to 12 with a mean ± SD of 4.45 ± 4.