Hysterscopic Resection of Premalignant and Malignant Endometrial Polyps: Is it a Safe Alternative to Hysterectomy?

Abstract

Study objective: The standard treatment of endometrial cancer (EC) and complex atypical hyperplasia (CAH) is hysterectomy with or without adnexectomy. In the last decade several centers have attempted to perform hysteroscopic resection of malignant and premalignant polyps as an alternative to hysterectomy. In the present study we evaluated the safety of this procedure in regard to residual uterine pathology.

Design: Retrospective chart review (Canadian Task Force classification II-2).

Setting: University hospital.

Patients: Women (n = 1766) who underwent hysteroscopic polypectomy during the years 1998 to 2016.

Interventions: Patients with CAH and endometrioid type EC in the removed polyps who underwent hysterectomy were included in the study. Patients with nonendometrioid pathology were excluded. The operative and pathologic reports of the hysteroscopy and hysterectomy procedures were revised.

Measurements and main results: Forty-three women (2.4%) were diagnosed with premalignant and malignant polyps: 21 with EC and 22 with CAH. Thirty-four women (79.0%) underwent hysterectomy and were included in the study group. The median age was 62 years (range, 35-83). Most women (79.4%) presented with postmenopausal bleeding or menorrhagia. In 13 patients (38.2%) more than 1 polyp was removed. The median size of the polyps was 2 cm (range, 1-4). In 27 women there were no other visible endometrial findings during the hysteroscopy except for the removed polyp. However, in 24 women (88.9%) residual CAH or EC was present in the hysterectomy specimen, mostly (55.6%) as multifocal lesions.

Conclusion: Our results indicate that hysteroscopic evaluation of the uterine cavity and polyp resection are not enough for the eradication of premalignant and malignant endometrial lesions. This alternative should be reserved for well-selected cases such as for fertility preservation and for patient with surgical risk factors that after the hysteroscopic polypectomy will receive further medical treatment.

Keywords: Complex atypical hyperplasia; Endometrial carcinoma; Endometrial polyp; Hysteroscopic polypectomy.