The FAP immunohistochemistry score correlated positively both with 68Ga-FAPi-46 SUVmax across cancer and tumor-adjacent non-cancer tissues (r = 0.781 [95% CI, 0.376–0.936], P < 0.001) and with SUVmean (r = 0.783 [95% CI, 0.379–0.936], P < 0.001) (Fig. 4). This evidence concerns the gene FAP and neoplasm.