We then chose the LncKLHDC7B/KLHDC7B pair for further analysis for the following reasons: (1) LncKLHDC7B may be a subtype tumor marker of the IM subtype, but its function is not well described in the literature; (2) LncKLHDC7B presents a significant association with its coding gene (localized in the same locus), which indicates a possible regulatory activity; (3) our guilt‐by‐association analysis highlighted correlations between the lncRNA and key cancer‐related pathways such as antigen presentation, natural killer‐mediated cytotoxicity, interferon signaling, and cell adhesion (Fig. S5). This evidence concerns the gene KLHDC7B and neoplasm.