Mapping showed a heterogenous cluster (cluster 1) that expressed naïve-like markers including CD3, IL7R, CCR7, and SELL, which were similar between ICC/IDC-enriched and benign-enriched T cells (Fig. 6j and Supplementary Fig. 8a, genes for cluster 1 in Source Data)76–79. This evidence concerns the gene CCR7 and intrahepatic cholangiocarcinoma.