title: Rapid growth of leiomyoma in patient receiving tamoxifen.
abstract: A 49-year-old patient with breast cancer had a leiomyoma that rapidly enlarged shortly after she started therapy with tamoxifen. Exploratory laparotomy was necessary to confirm the diagnosis. The rapid growth may have resulted from the estrogen agonist properties of tamoxifen or alternatively by ovarian stimulation resulting in endogenous estrogen production.
authors.affiliation: Department of Obstetrics and Gynecology, University of Michigan Medical Center, Ann Arbor 48109-0718.
authors.forename: P V
authors.initials: PV
authors.lastname: Dilts
authors.forename: M P
authors.initials: MP
authors.lastname: Hopkins
authors.forename: A E
authors.initials: AE
authors.lastname: Chang
authors.forename: R L
authors.initials: RL
authors.lastname: Cody
mesh_terms: D001943:Breast Neoplasms / Q000150:complications / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007044:Hysterectomy; D007889:Leiomyoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D013629:Tamoxifen / Q000009:adverse effects* / Q000627:therapeutic use; D014594:Uterine Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery
chemical_list: D013629:Tamoxifen