FCHSD1 has increased expression in 13 cancers, including bladder urothelial carcinoma (BLCA), cholangiocarcinoma (CHOL), colon adenocarcinoma (COAD), esophageal carcinoma (ESCA), head and neck squamous cell carcinoma (HNSC), renal clear cell carcinoma (KIRC), and renal papillary cell carcinoma (KIRP) (Figure 1A). Here, FCHSD1 is linked to cholangiocarcinoma.