Expression of immune checkpoint protein in oral squamous cell carcinoma and its clinicopathological correlation: A tertiary care center cross-sectional study.

Background: Recent evidence suggests that oral squamous cell carcinoma (OSCC) patients who exhibit the immunohistochemical expression of immune checkpoint protein programmed cell death ligand 1 (PD-L1) are more likely to have a poor clinical outcome and may serve as an independent prognostic marker.

Aims And Objectives: This study aimed to assess the immunohistochemical expression of immune checkpoint protein PD-L1 in OSCC and its clinicopathological correlation.

Materials And Methods: OSCC cases were included in the study.