Table 1.

PD-L1 Expression in head and neck cancers

HPV+ (N = 20)HPV− (N = 7)
PositiveNegativePositiveNegative
PD-L1 expression14/20 (70%)6/20 (30%)2/7 (29%)5/7 (71%)
Membranous staining14/14 (100%)2/2 (100%)
Tumor periphery13/14 (93%)2/2 (100%)
Diffuse within tumor1/14 (7%)
Presence of TILs14/14 (100%)3/6 (50%)2/2 (100%)2/5 (40%)