RAD51 and neoplasm: Siedel et al.36 examined 253 endometrioid EC samples using the Myriad myChoice assay, demonstrating that a higher HRD score (cut off score ⩾4) was associated with worse disease-free survival.36 de Jonge et al.37 conducted a functional HR study on fresh tumor samples (N = 36) assessing the ability of replicating tumor cells to accumulate RAD51 foci induced by ionizing radiation.