The median density of CD3+ T cells in the tumor core (CT) and invasive margin (IM) was 1,048/mm2 (8/mm2–11,917/mm2) and 1,177/mm2 (33/mm2–11,551/mm2), respectively, and the corresponding values for CD8+ T cells were 105/mm2 (2/mm2–4,178/mm2) and 231/mm2 (1/mm2–2,705/mm2), respectively. Here, CD8A is linked to neoplasm.