PTEN and cancer: The K-M curves revealed that the EC patients with PTEN mutation (PTEN mut) exhibited a longer survival time than the patients with wild-type PTEN (PTEN wild; P < 0.001; Figure 2(b)), and the percentage chart shows that the PTEN mutation occurred more frequently in the younger patients with a lower stage and grade of cancer (P < 0.001; Figures 2(c)–2(e)).