Use of transvaginal ultrasound in diagnosing the etiology of menometrorrhagia.
Journal of Reproductive Medicine 1994 May
Forty-five women with a chief complaint of abnormal vaginal bleeding from a few days' duration (spotting) to three to six months of bleeding (average, 4.5 months) were evaluated using a standard clinical approach followed by transvaginal ultrasound (US). Serum estradiol (E2), progesterone and/or endometrial biopsy was used to further clarify the etiology of the bleeding and confirm the clinical or ultrasound diagnosis. Anatomic findings were present in 31% of patients by US examination as compared to only 9% by clinical evaluation. An additional 9% of patients had polycystic ovary disease. Of the 16% of study patients on oral contraceptives with a clinical diagnosis of breakthrough bleeding, 33% had anatomic findings associated with the bleeding on US. The ultrasound image of the endometrium predicted the endometrial biopsy findings in all three patients with postmenopausal bleeding. In the remaining patients with a diagnosis of dysfunctional uterine bleeding (DUB) (a diagnosis usually made clinically by excluding other etiologies), US was helpful in excluding many patients with anatomic findings not detected by physical examination and in evaluating the endometrium, helping differentiate anovulatory from ovulatory DUB. US was helpful in predicting the hormonal and histologic endometrial status of the patients. Patients with more severe and prolonged DUB had low serum E2 with US findings of a single-line endometrium (consistent with low serum E2 and anovulation). US can be a valuable aid in evaluating women presenting with a complaint of abnormal vaginal bleeding by demonstrating anatomic findings frequently not discernible on pelvic examination, such as small cysts and leiomyomas and even endometrial carcinoma, and in evaluating the endometrium in terms of its thickness and, indirectly, the endometrial histology and the ovulatory and hormonal status of the patient. US can also be of value in confirming some diagnoses that are generally made clinically by exclusion, such as breakthrough bleeding from oral contraceptive use and DUB.
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