As shown in Figure 3A,CD3, CD8 and CD16 expression were detected in PTC+HT tumors and their adjacent para-tumor tissues, but little in the PTC tissues and their adjacent non-tumor tissues, indicating that T and CD8+ T cells as well as monocytes infiltrated predominantly in the PTC+HT and their adjacent non-tumor tissues. This evidence concerns the gene CD8A and hematocrit.