4mmdeg Polypoidal mass. Collection of fluid within the uterus. 5. Pap smear : It is not a reliable test for diagnosis of Endometrial carcinoma. Only 30 - 50% patients with Endometrial carcinoma have positive pap test and they are women with advanced disease. Remember : * First investigations in case of endometrial cancer - Endometrial aspiration biopsy. Best investigation for diagnosing endometrial cancer - Fractional curettage.">