Matsumoto et al., who previously reported about the association between the PD-L1 expression of surgically resected specimens and FNA specimens in 94 patients with pancreatic cancer, 30 revealed positive and negative concordance rates of 44% (7/16) and 97% (76/78) at a cutoff of ≥ 5% and 55% (6/11) and 99% (82/83) at cutoff of ≥ 10%, respectively. Here, CD274 is linked to familial pancreatic carcinoma.