Figure 2

Principal component analysis of 52 pNEN and 18 PDAC patients. PCA plots of 7 variables, which includes CD3, CD4, CD8, CD20, CD204, PD-1, and PD-L1 in the epithelial area, are shown for all 70 samples. There is a clear separation of three clusters according to the histologic type of NETs, including G1/G2/G3, NECs, and PDACs.