HULC and cholangiocarcinoma: A great number of studies have presented that lncRNAs may function as ceRNAs and play an essential role in regulating gene expression.53, 54, 55, 56 For instance, lncRNA H19 and HULC may act through a ceRNAs manner by regulating let‐7a/let‐7b and miR‐372/miR‐373 which play an essential part in cholangiocarcinoma development.57 We constructed ceRNA network of PTC with aberrantly expressed lncRNAs, miRNAs, and mRNAs in TCGA.