SNHG1 and cholangiocarcinoma: Cholangiocellular carcinoma is a type of tumor with high invasive character.118 The survival time of most patients is only 2 years after the diagnosis.119 Yang et al120 researched The Cancer Genome Atlas CCA, RNA Sequencing data and Gene Expression Omnibus GSE76297 and concluded that SNHG1 was expressed at a higher level in cholangiocarcinoma tissues than in normal tissues.