Objective: To describe the prevalence of hysteroscopic findings and histologic diagnoses in patients with abnormal uterine bleeding (AUB).
Design: Retrospective series of consecutive patients.
Setting: Tertiary care university hospital and private office.
Patient(s): Four thousand fifty-four hysteroscopies with biopsy in patients with AUB evaluated between June 1993 and December 2004.
Intervention(s): Hysteroscopies were performed using 2.9-mm or 4-mm telescopes with CO(2) or saline as the distension media. Biopsies were done with a 5-mm grasper or with a Novak's curette.
Main outcome measure(s): Prevalence of hysteroscopic findings and histologic analysis of biopsies.
Result(s): Endometrial polyp was the most frequent hysteroscopic finding, accounting for 1,374 (33.9%) cases. Normal uterine cavity and cervical canal were found in 814 (20.1%) patients. Submucous fibroids were diagnosed in 302 (7.5%) women. Normal endometrium was the most frequent histologic diagnosis, accounting for 1,888 (46.6%) cases. Endometrial polyp was found in 1,115 (27.5%) patients. Endometrial hyperplasia was diagnosed in 613 (15.1%) and endometrial cancer in 105 (2.6%) women.
Conclusion(s): Endometrial polyps are the most frequent hysteroscopic findings in patients with AUB, whereas normal endometrium is the most frequent histologic diagnosis.