ADAM17 and in situ carcinoma: Expression of ADAM17 showed a trend toward inverse correlation with PD-L1 within both tumor regions and cell types, but without statistically significant differences (TC-MIBC: rs = −0.413, p = 0.170; TC-CIS: rs = −0.198, p = 0.486; IC-MIBC: rs = −0.348, p = 0.215; IC-CIS: rs = −0.365, p = 0.184).