A thin endometrium or diffuse smooth endometrial thickening is predictive of benign endometrial histologic findings, but all women with endoluminal masses require further histologic evaluation to exclude malignant disease.

Background:The aim of this prospective study was to evaluate transvaginal hysterosonography (TVHS) in postmenopausal bleeding (PMB) as an alternative to endometrial biopsy. The study was conducted at the Zarka Military Hospital, Amman, Jordan, over a one-year period from 1996 to 1997. Patients and Methods:The study comprised 98 women presenting with post-menopausal bleeding who had been listed for diagnostic dilatation and curettage. Transvaginal sonography (TVS) and transvaginal hysterosonography were performed one week before operation. The mean age of the women was 57 years, and all of them had had their menopause for at least six months. Results: Sixty-one women (62%) demonstrated endometrial thickness of more than 5 mm by transvaginal sonography. All the women had transvaginal hysterosonography, except seven on whom hysterosonography could not be performed for technical reasons and who had to be excluded from the study, leaving a total of 54 women. TVS confirmed the presence of endoluminal mass in 30 of 54 women (60%). Twenty-two of the 30 endoluminal mass cases were pedunculated while eight were sessile. Sixteen of the pedunculated cases were endometrial polyps while the remaining six were fibroid polyps. Five of the sessile cases were fibroid, two were endometrial hyperplasia, and the last one endometrial carcinoma. The other 44 out of the 98 patients also underwent transvaginal hysterosonography. No pathology could be detected in these patients, but they were noted to have atrophic endometrium after dilatation and curettage. Conclusion: The combination of transvaginal sonography and transvaginal hysterosonography is both sensitive and specific with regard to detecting and excluding endoluminal masses as the cause of post-menopausal bleeding. Diagnostic dilatation and curettage fails to detect a large percentage of some lesions, so TVS in combination with TVHS should be considered as the initial examination in the evaluation of all women with post-menopausal bleeding.

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