title: Ectopic pregnancy in a preexisting hydrosalpinx during a spontaneous pregnancy.
abstract: OBJECTIVE
  To discuss the possible role of abnormal embryo migration as a cause of ectopic pregnancy during IVF with hydrosalpinges.
  
  
  METHODS
  Case report.
  
  
  METHODS
  University-based reproductive endocrinology and fertility clinic.
  
  
  METHODS
  A patient presenting with a tubal ectopic pregnancy after spontaneous conception in a preexisting hydrosalpinx.
  
  
  METHODS
  Laparoscopic salpingectomy.
  
  
  METHODS
  Ultrasound and operative findings.
  
  
  RESULTS
  Case demonstration of abnormal embryo migration into a surgically documented preexisting hydrosalpinx during a spontaneous conception.
  
  
  CONCLUSIONS
  The mechanism of increased tubal ectopic pregnancy rates during IVF with hydrosalpinges remains unexplained. This case supports abnormal embryo migration due to the hydrosalpinx as a contributing factor.
authors.affiliation: Division of Reproductive Endocrinology and Fertility, Duke University, Durham, North Carolina, USA.
authors.forename: Rachana V
authors.initials: RV
authors.lastname: Garde
authors.forename: Vuk P
authors.initials: VP
authors.lastname: Jovanovic
authors.forename: Grace M
authors.initials: GM
authors.lastname: Couchman
authors.forename: David K
authors.initials: DK
authors.lastname: Walmer
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Price
mesh_terms: D005184:Fallopian Tube Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D010535:Laparoscopy; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000175:diagnosis* / Q000601:surgery*; D012489:Salpingostomy; D016896:Treatment Outcome