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Novel diagnostic procedure
The value of hysteroscopy in the diagnostic approach to a rudimentary horn pregnancy
  1. E M G van Esch1,
  2. E E L O Lashley2,
  3. B Berning2,
  4. C D de Kroon3
  1. 1Department of Gynecology, Bronovo Hospital, The Hague, The Netherlands
  2. 2Department of Obstetrics and Gynecology, HAGA Hospital, The Hague, The Netherlands
  3. 3Department of Obstetrics and Gynecology, LUMC, Leiden, The Netherlands
  1. Correspondence to C D de Kroon, C.D.de_Kroon{at}


A 33-year-old woman presented with an ectopic pregnancy without any complaints. Laparoscopy was performed since a tubal pregnancy was expected. However, both fallopian tubes appeared normal and it was not possible to differentiate accurately between a pregnancy in a non-communicating horn and a pregnancy in a bicornuate uterus. We therefore performed MRI which showed a thin myometrium around the pregnancy. In order to differentiate between a communicating and a non-communicating uterine horn the authors performed a hysteroscopy. Since there was only one cervical os, and an entrance to the second uterine cavity was not seen along the cervical canal, it was concluded that this pregnancy was situated in a non-communicating rudimentary horn. The non-communicating uterine horn, with the pregnancy in situ, was completely removed. Since a pregnancy in a bicornuate uterus is viable in contrast to a pregnancy in a non-communicating horn, accurate diagnosis is important.

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  • Competing interests None.

  • Patient consent Obtained.