title: Tubal pregnancy in a unicornuate uterus with rudimentary horn: a case report.
abstract: OBJECTIVE
  To report a case of tubal pregnancy in a unicornuate uterus with rudimentary horn on the side of the rudiment and its pathology.
  
  
  METHODS
  Case report.
  
  
  METHODS
  University hospital.
  
  
  METHODS
  An 18-year-old woman, primigravida, with tubal pregnancy.
  
  
  METHODS
  Systemic administration of methotrexate, salpingectomy by laparotomy, and laparoscopic surgery for resection of rudimentary horn.
  
  
  METHODS
  Emergent laparotomy revealed that the intraperitoneal hemorrhage was caused by the rupture of the tubal pregnancy on the same side as the rudimentary horn of the unicornuate uterus. A corpus luteum was found at the ipsilateral ovary of the rudimentary horn.
  
  
  RESULTS
  Image diagnosis and pathological examination of the rudimentary horn revealed that this uterine malformation was a unicornuate uterus with a noncommunicated, noncavitary rudimentary horn, corresponding to class IIc of the American Fertility Society classification of müllerian anomalies.
  
  
  CONCLUSIONS
  This is the first report of a tubal pregnancy on the side of the noncommunicating rudimentary horn with the ipsilateral ovary carrying a corpus luteum in a unicornuate uterus.
authors.affiliation: Hokkaido University School of Medicine, Sapporo, Japan. ya-handa@med.hokudai.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Handa
authors.forename: N
authors.initials: N
authors.lastname: Hoshi
authors.forename: H
authors.initials: H
authors.lastname: Yamada
authors.forename: S
authors.initials: S
authors.lastname: Wada
authors.forename: M
authors.initials: M
authors.lastname: Kudo
authors.forename: K
authors.initials: K
authors.lastname: Tsuda
authors.forename: T
authors.initials: T
authors.lastname: Sagawa
authors.forename: S
authors.initials: S
authors.lastname: Fujimoto
mesh_terms: D000020:Abortifacient Agents, Nonsteroidal / Q000627:therapeutic use; D000293:Adolescent; D005187:Fallopian Tubes / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008727:Methotrexate / Q000627:therapeutic use; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000473:pathology* / Q000601:surgery; D014599:Uterus / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery
chemical_list: D000020:Abortifacient Agents, Nonsteroidal; D008727:Methotrexate