Extrauterine ectopic pregnancies includes tubal (ampullary, isthmic and interstital), ovarian, abdominal and rudimentary horn ectopic pregnancies. Most clinicians are familiar with ampullary or isthmic tubal ectopics, as these represent the majority of extrauterine ectopic. However, it is important to be aware of the other types, as, if not recognised promptly, these can lead to an even higher morbidity and mortality for women compared to tubal ectopics.
The diagnostic gold standard is transvaginal ultrasound, and the key to successful diagnosis is careful examination of all potential sites of ectopic pregnancy implantation. Specific characteristics, such as the sliding sign, which consisnt in appling gentle pressure with the ultrasound probe combined with abdominal palpation to demonstrate free move
ment between the adnexal mass and the ovary, can help differentiate a tubal ectopic from an ovarian or abdominal ectopic pregnancy, while the presence of a unicornuate uterus should raise the suspicions of a rudimentary horn pregnancy. Also their clinical presentation varies, and the management strategy, including expectant, medical and surgical management, should be tailored on the pregnancy location, viability and patient clinical condition.