FFPE samples were immunostained for CD4+, CD8+, and CD45+ tumor-infiltrating immune cells, where 9, 15, 17, and 16; 7, 24, 14, and 12; and 3, 10, 10, and 34 samples were stained negatively, weakly, moderately, and strongly for CD4+, CD8+, and CD45+ tumor-infiltrating immune cells, respectively (Figure 1). The gene discussed is CD4; the disease is neoplasm.