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Endometrial polyps: prevalence, detection, and malignant potential in women with abnormal uterine bleeding
P G Anastasiadis1, N G Koutlaki, P G Skaphida
1Department of Obstetrics and Gynecology, General Hospital of Alexandroupolis, Democritus University of Thrace, Greece.
Purpose Of Investigation:
To report our evaluation of the prevalence and malignant potentiality of endometrial polyps in women with abnormal uterine bleeding, as well as the efficacy of transvaginal ultrasonography and sonohysterography as diagnostic techniques.
Methods:
Fractional dilatation and curettage (D&C) was performed in 1,415 patients aged 23-85 years treated in our clinic for abnormal uterine bleeding from 1986 to 1998. Transvaginal ultrasonography was performed prior to D&C on all patients. Sonohysterography was performed only on 157 patients. Diagnostic efficacy for both techniques was evaluated for the detection of endometrial polyps combined with hyperplasia due to sonographic and histologic difficulties in distinguishing them.
Results:
The prevalence of endometrial polyps was 8.9% (126/1,415). From all 126 endometrial polyps found, 94 were benign, 30 (23.8%) were found with premalignant changes (complex and atypical hyperplasias) and two (1.5%) had undergone malignant degeneration. Transvaginal ultrasonography was of limited diagnostic value for polyps and hyperplasia in premenopausal women, while in postmenopausal women the method provided a greater yield. Sonohysterography was found to be a more effective diagnostic tool.
Conclusion:
Endometrial polyp prevalence rises by age and/or menopause. Malignant degeneration of endometrial polyps was observed only in postmenopausal women. Sonohysterography represents an improvement over conventional ultrasonography and both methods could be used for screening purposes especially when hysteroscopy can not be performed.