From: The prognostic role of PD-L1 expression and the presence of polyomavirus in Merkel cell carcinoma cases
PD-L1 < 5%
PD-L1 ≥ 5%
p-value
Negative MCPyV
32 (88.9%)
4 (11.1%)
0.005
Positive MCPyV
16 (55.2%)
13 (44.8%)
Total
48
17