Case report: Sentinel lymph node mapping of endometrial carcinoma occurring in uterine didelphys

Highlights • In a bleeding postmenopausal woman with didelphys uterus, endometrial biopsy should be taken from both uterine cavities. • Sentinel lymph node mapping has not been previously described in the setting of endometrial cancer and uterine didelphys. • Routine sentinel lymph node mapping was successfully performed in a patient with endometrial cancer and uterine didelphys.