CD274 and neoplasm: From the results of bioinformatics, we found that there was the highest PD‐L1 genetic alteration frequency in which amplification accounted for the majority of sarcoma tumour samples, and we found that the genetic alterations of PD‐L1 were associated with poor prognosis in sarcoma patients in terms of OS, PFS and DSS, which showed the PD‐L1 gene was closely related to the occurrence and development of sarcoma.