Prognostic Value of PD-L1 and Its Correlation with GATA3, CK5/6, and CK14 Expression in Muscle-Invasive Bladder Cancer.
BACKGROUND Muscle-invasive bladder cancer (MIBC) is an aggressive urothelial carcinoma with poor outcomes. This study investigated programmed death ligand 1 (PD-L1) expression and its association with key immunohistochemical markers (GATA3, CK5/6, CK14) and overall survival (OS). METHODS We analyzed formalin-fixed, p...