Large Submucosal Uterine Leiomyoma Prolapse Into the Vagina After Complicating a Pregnancy: A Case Report

Uterine leiomyomas are the most common pelvic neoplasm in females. They are non-cancerous monoclonal tumors that develop from the fibroblasts and smooth muscle cells of the myometrium. They can develop in females of reproductive age and post-menopausal as well. When symptomatic, they frequently manifest as abnormal uterine bleeding and/or pelvic pain or pressure. Reproductive effects are also possible in fibroids such as infertility and poor pregnancy outcomes. In this report, we present a case of a 39-year-old woman, G9P4A4, GA 16 weeks who came to the ER with an incomplete abortion at home after which she had large multiple uterine submucosal fibroids prolapsing into the vagina. On ultrasound, the placenta was still inside, and a large submucosal anterior uterine fibroid and a posterior uterine fibroid were found with sizes 10x10 cm and 2x3, respectively. Evacuation and curettage (E&C) could not be completed because fibroids were obstructing and limiting the access. The patient was managed medically and then discharged, after which she came back with prolapsing uterine fibroids and part of the placenta. In the end, she was managed by hysteroscopic myomectomy.