For example, the mean CD8+ T cell density ranged from 256 ± 462 cells/mm2 in ovarian and 288 ± 482 cells/mm2 in pancreatic cancer to 520 ± 887 cells/mm2 in colorectal and 649 ± 1077 cells/mm2 in renal cell cancer. Here, CD8A is linked to familial pancreatic carcinoma.