The expression of ICAM-1 in the negative lymph node group was 3.000 ± 1.211 (the differences in indicator expression between the cancer group and the surrounding tissues, as well as between the positive and negative lymph node groups, were verified in this section using the rank sum test).TNBC cancer tissues expressed more ICAM-1 than the surrounding tissues did (p < 0.05) (Table 2). Here, ICAM1 is linked to cancer.