Metastasis of adenocarcinoma of the gall bladder to an endometrial polyp detected by endometrial curettage: case report and review of the literature.

SUMMARY: Polyps are the most common benign lesions in the endometrium. Metastasis to the endometrial polyp from a distant primary tumor is rare. Breast carcinoma is the most frequent extragenital cancer that metastasizes to the endometrial polyp. We report the case of a 63-year-old with metastatic gall bladder adenocarcinoma involving endometrial polyps detected by endometrial curetting. It was the first sign of her metastatic disease. After this diagnosis, bone metastases were detected during radiologic screening. Gastrointestinal tumor metastasis to an endometrial polyp is a very rare event, but if a patient with a known primary extragenital tumor has abnormal vaginal bleeding, the possibility of metastasis should be included in the differential diagnosis.