We thus propose that future studies on the role of additional multi-cancer regions, such as 1q32/MDM4, 4q24/TET2, 8q24, 10p12/MLT10, 14q24/RAD51B8 or 19q13/MERIT40 (Sakoda et al. 2013), are worthwhile endeavours for cancers that are relatively understudied, including endometrial cancer. Here, MDM4 is linked to endometrial cancer.