CD4 and chordoma: Similarly, the mean percentage of myeloid cells identified within 100μm of chordoma cells (PMN: 90.68% ± 19.79%, monocyte: 86.66% ± 23.44%, pan macrophage: 93.34% ± 11.74%) was greater than the mean percentage of T cells identified within 100μm of chordoma cells (CD4+ T cells: 81.40% ± 26.22%, CD8+ T cells: 80.49% ± 26.65%, Tregs: 62.76% ± 33.15%).