Large Extracervical Posterior Pedunculated Leiomyoma of the Uterus With the Only Symptom of Chronic Low Back Pain From Radiculopathy: A Case Report

Large extra cervical-type posterior subserosal leiomyomas originating from the cervix are extremely rare. Our case concerns the surgical treatment of a large posterior pedunculated subserosal extracervical leiomyoma of the uterus with extension to the retroperitoneal space, which was associated with chronic low back pain. A 45-year-old patient, without menstrual disorders and with a medical history of chronic low back pain with sciatica, was referred for gynecological evaluation. The gynecological examination revealed the presence of a large pelvic mass, which occupied the pouch of Douglas. Preoperative imaging confirmed the presence of a solid pelvic mass, but its origin could not be clarified. Neither transvaginal ultrasound nor MRI could establish the diagnosis of extracervical leiomyoma of the uterus. Based on the clinical and imaging findings, surgical management of the patient was decided with laparotomy. Intraoperatively, a large extracervical pedunculated leiomyoma was found, which originated from the posterior wall of the cervix and extended into the retroperitoneal space. An abdominal total hysterectomy and bilateral salpingo-oophorectomy were performed. The procedure had significant surgical difficulties. The postoperative course was uneventful. Three months after surgery, the patient reported relief of symptoms. This paper highlights a brief review of cervical leiomyomas, highlighting the important difficulties regarding the preoperative diagnosis and surgical management of these patients.