Conversely, DHCR7 mRNA expression was low in CHOL (cholangiocarcinoma), KIRC (kidney renal clear cell carcinoma), KIRP (kidney renal papillary carcinoma), and PCPG (pheochromocytoma and paraganglioma) (Figure 1B). The gene discussed is DHCR7; the disease is cholangiocarcinoma.