However, CCNA2 mRNA is lower in acute myeloid leukemia (LAML) than that in normal tissues from the GTEx project (p < 0.001), and we do not obtain a significant difference in brain lower grade glioma (LGG) and pheochromocytoma and paraganglioma (PCPG). The gene discussed is CCNA2; the disease is pheochromocytoma.