Large pelvic mass arising from the cervical stump: A case report.

Background: A large cervical cyst with a cervical high-grade squamous intraepithelial lesion arising from the cervical stump is rare. After supracervical hysterectomy, there is a risk of various lesions occurring in the cervical stump. We review the types and characteristics of cervical stump lesions and compare total hysterectomy with subtotal hysterectomy. Gynecologists should choose the most suitable surgical method based on both the patient's condition and wishes. If the cervix is retained, patients require a close follow-up.

Case Summary: A 57-year-old woman was admitted to the Gynecology Department for a large pelvic mass. Her chief complaint was abdominal distention for two months. She had undergone subtotal supracervical hysterectomy for leiomyoma 14 years prior. Abdominal ultrasonography detected a 9.1 cm × 8.5 cm × 8.4 cm anechoic mass with silvery fluid in the pelvic cavity and high-risk human papilloma virus 53 (HPV53) was positive. The admission diagnosis we first considered was a pelvic mass mimicking carcinoma of the cervical stump. We performed a laparotomy and a rapid frozen biopsy was suggestive of a fibrous cyst wall coated with a high squamous intraepithelial lesion. The pelvic mass was removed, and a bilateral adnexectomy was implemented. Final pathology confirmed that the pelvic mass was a large inflammatory cyst with a cervical high-grade squamous intraepithelial lesion. After successful intervention, the patient was discharged one week after surgery and there was no recurrence of the vaginal stump at 43 mo.

Conclusion: When addressing benign uterine diseases, gynecologists should pay adequate attention to retaining the cervix. If the cervix is retained, patients require a close follow-up.