Moreover, we found that the expression of IL-17B was positively correlated with BLCA (r = −0.372, p < 0.001), CESC (r = −0.166, p = 0.0054), KIRC (Cor = −0.233, p < 0.001), PCPG (r = −0.372, p < 0.001), and STAD (Cor = −0.188, p < 0.001) in stromal scores (Figure 4C), indicating that it may be negatively related to tumor purity, which was just confirmed again in Figure 5C. Here, IL17B is linked to neoplasm.