title: Postmenopausal bleeding resulting from placental site trophoblastic tumor of the uterus: a case report.
abstract: BACKGROUND
  Placental site trophoblastic tumor (PSTT) is the least common form of gestational trophoblastic disease. Occurrence of PSTT after menopause is extremely rare.
  
  
  METHODS
  A 53-year-old woman complained of postmenopausal bleeding 6 years after cessation of her menstrual periods. On dilatation and curettage and on hysterectomy and bilateral salpingo-oophorectomy later, PSTT was found in the uterus with myometrial invasion and no metastasis. Serum human chorionic gonadotropin levels before and after the operation were 15 and < 1 IU/mL, respectively. Hysterectomy was performed.
  
  
  CONCLUSIONS
  Because of PSTT's rarity, limited information is known about its natural history, and there is no reliable means to predict clinical outcome. Thus, patients must be evaluated on a case-by-case basis.
authors.affiliation: Departments of Obstetrics and Gynecology, Shaheed Beheshti Medical Science University, Taleghani Hospital, Tehran, Iran.
authors.forename: Masoumeh
authors.initials: M
authors.lastname: Fallahian
authors.forename: Bahar
authors.initials: B
authors.lastname: Jafari
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D006801:Humans; D007044:Hysterectomy; D008875:Middle Aged; D010920:Placenta / Q000473:pathology*; D017698:Postmenopause; D011247:Pregnancy; D014328:Trophoblastic Neoplasms / Q000150:complications* / Q000601:surgery; D014592:Uterine Hemorrhage / Q000209:etiology*; D014594:Uterine Neoplasms / Q000150:complications* / Q000601:surgery
chemical_list: D006063:Chorionic Gonadotropin