Table 1 Common definitions of pregnancy near the uterotubal junction in the literature
Ectopic Pregnancy Pregnancy outside the endometrial cavity | |
Interstitial Pregnancy  - Pregnancy that implants within the proximal tubal segment that lies within the muscular uterine wall [10].  - Implantation within the most medial 1–2 cm of a fallopian tube as it opens into a uterine cavity without evidence of uterine anomaly [24]. | |
Eccentric Pregnancy Pregnancy implantation within the superior-lateral aspect of the endometrial cavity/uterine corpus | |
Angular Pregnancy:  - Implantation within the endometrial cavity, but at one cornua and medial to the uterotubal junction and round ligament [24].  - Angular pregnancy that displaces the round ligament upward and outward, whereas interstitial tubal pregnancy will not [12].  - Lateral displacement of pregnancy by a uterine leiomyoma or other myometrial mass [25]. | |
Cornual Pregnancy:  - Conception that develops in the rudimentary horn of a uterus with a mullerian anomaly [11]. |