ESRRG was upregulated in UCEC, BRCA, LUAD, Prostate Cancer (PRAD), OV, UCS, ALL, LAML, and downregulated in GBM, ESCA, STES, Kidney Papillary Cell Carcinoma (KIRP), KIPAN, STAD, HNSC, KIRC, LIHC, WT, SKCM, BLCA, THCA, PAAD, Pheochromocytoma & Paraganglioma (PCPG), Adrenocortical Cancer (ACC), and KICH (Figure 1C). Here, ESRRG is linked to pheochromocytoma-paraganglioma.