Figure 1.

Quantitative assessment of TILs on H&E sections. iTIL count inside cancer cell nests (arrowheads) and sTIL density in the intratumoral stromal compartment (unshaded area). Representative images of (A-B) iTIL^High and sTIL^High and (C-D) iTIL^Low and sTIL^Low. Original magnification, A-D, ×200. H&E, hematoxylin and eosin; iTIL, intraepithelial tumor-infiltrating lymphocyte; iTIL^High, high level of iTIL count; iTIL^Low, low level of iTIL count; sTIL, stromal tumor-infiltrating lymphocyte; sTIL^High, high level of sTIL density; sTIL^Low, low level of sTIL density; TILs, tumor-infiltrating lymphocytes.