BRCA1 and endometrioid tumor: Similar patterns were also seen in the BROV cohort, BRCA1/2 mutations were both commonly identified in serous epithelial cancers and non‐endometrioid tumors while a majority of the patients with mutations in genes besides BRCA1/2 mutations were seen in non‐serous but in endometrioid cancers (p value = .009, p value = .005 respectively).