At the same time, the percentages of CD45 + Tim-3 + lymphocytes, CD3 + Tim-3 + T cells, CD3 + CD4 + Tim-3 + T cells, and CD3 + CD8 + Tim-3 + T cells had no statistical differences in primary peritoneal neoplasms group compared with secondary group (the p value was respectively 0.460, 0.158, 0.381, and 0.309, Fig. 4B). Here, CD4 is linked to peritoneal neoplasm.