The perplexing entity of rudimentary uterine horn

A rudimentary uterine horn may be responsible for intriguing presentations in different stages of life. These presentations often masquerade commoner gynaecologic disorders resulting in diagnostic and management challenges for the treating clinicians. Whereas many of these anomalies may be discovered during the investigative workup for cryptomenorrhoea, dysmenorrhoea and infertility, due to lack of symptoms especially in a parous woman, a large proportion remains undiagnosed. We report here, two interesting presentations of this benign entity resulting in significant morbidity. The first case report describes late activation of a rudimentary horn presenting as chronic pelvic pain. The second patient presented with a failed second trimester induction of labor (abortion) for fetal demise. Her examination and investigations suggested an abdominal pregnancy, yet, on laparotomy, a 15 week pregnancy within an accessory uterine horn was discovered.