Patterns of spread and genetic alterations of primary endometrioid carcinomas of the ovary.

There were no lymph node metastases in patients with comprehensively staged primary endometrioid ovarian carcinoma. Staging did not impact survival and may be omitted, regardless of grade. Germline BRCA mutations are rare in ovarian endometrioid carcinoma compared with reported rates in high-grade serous carcinomas.