FAP and familial pancreatic carcinoma: Unsurprisingly, Kessler et al. reported a significant moderate correlation of maximal standardized uptake values (SUVmax) on Ga68-FAPI PET and histopathologic FAP expression (immunohistochemical FAP score) in 18 pancreatic cancer samples (r = 0.60, p < 0.01) [126], similarly as in Ding et al. (r = 0.78, p < 0.05) [125].