Torsion and rupture of a non-communicating rudimentary horn in a 17-week gestation in a 16-year-old girl: lessons learnt

A unicornuate uterus with non-communicating rudimentary horn has always been notorious and poses threat to continuation of pregnancy with dismal consequences. We are reporting an interesting case of uterine malformation with a 90° rotation of uterine axis which ultimately ruptured during termination of pregnancy. The rarity in our case was not only conception in non-communicating horn but also the complete twisting of axis which made the pregnant horn come in front of the non-gravid unicornuate uterus, mimicking normal pregnancy. The most important lesson learnt is that if induction does not lead to cervical changes and uterine contractions, one must consider atypical presentations of an anomalous uterus as a possible differential before proceeding further.

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