Chen et al. performed a statistical analysis of the mutation rates of PRKDC reported in The Cancer Genome Atlas and Chinese population databases; the authors found that PRKDC had high mutation rates in several tumours, including gastric, colorectal and endometrial cancers, with a high correlation with microsatellite instability‐high correlation with microsatellite instability.8 Here, PRKDC is linked to endometrial cancer.