title: Retroperitoneal leiomyomas: a rare tumor of the pelvis.
abstract: Retroperitoneal leiomyomas are extremely rare and have a good prognosis. Long-term follow-up reveals no metastasis but local recurrences do occur. These tumors, like uterine leiomyomas, are frequently accompanied by hyaline or myxoid changes as well as a trabecular pattern. Most are positive for estrogen and progesterone receptors. Herein, we report a 46-year-old woman with retroperitoneal leiomyomas who had undergone laparoscopically assisted vaginal hysterectomy 5 years previously due to uterine leiomyomas. Treatment by laparoscopic excision was successful and immunohistochemical staining of the tumor tissue was negative for estrogen and progesterone receptors.
authors.affiliation: Department of Obstetrics and Gynecology, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: Yu-Hsin
authors.initials: YH
authors.lastname: Hsu
authors.forename: Te- Fu
authors.initials: T
authors.lastname: Chan
authors.forename: Shyng-Shiou F
authors.initials: SS
authors.lastname: Yuan
authors.forename: Sheng-Lan
authors.initials: SL
authors.lastname: Wang
authors.forename: Jinu-Huang
authors.initials: JH
authors.lastname: Su
mesh_terms: D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000737:chemistry / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D011960:Receptors, Estrogen / Q000032:analysis; D011980:Receptors, Progesterone / Q000032:analysis; D012186:Retroperitoneal Neoplasms / Q000737:chemistry / Q000473:pathology / Q000601:surgery*
chemical_list: D011960:Receptors, Estrogen; D011980:Receptors, Progesterone