IL2 and chordoma: GSEA revealed that interforn‐α(IFN‐α), IFN‐γ, interleukin2(IL2)/signal transducer and activator of transcriptiondao 5 (STAT5), IL6/Janus kinase (JAK)/STAT3, the IL‐17 signalling pathway, antigen processing and presentation, and inflammatory responses were among the upregulated signalling pathways in chordoma lesions, specifically in macroC1, macroC2 and macroC5 (Figure 3C).