CD4 and neoplasm: Results showed high CD47 expression on 45.6% ± 5.31% of CD4+ and 53.5% ± 7.51% of CD8+ lymphocytes in adjacent tissues, whereas in tumor tissues, CD47high+ lymphocytes decreased to 26.7% ± 4.16% for CD4+ and 37.7% ± 7.21% for CD8+.