IL4I1 and pheochromocytoma: Our results also showed that the expression of IL4I1 in CESC, COAD, ESCA, HNSC, KIRP, LGG, LIHC, GBM, LUAD, pheochromocytoma and paraganglioma, READ, sarcoma, STAD, and testicular germ cell tumors was negatively correlated with tumor purity and positively correlated with the degree of TAM invasion (Fig. 5B).