A small, 16 mm, right-sided rudimentary uterine horn is separate from the native cavity, best appreciated on the axial uterus plane images.
The ectopic pregnancy is posterior and separate to the uterus and rudimentary right horn. The right ovary is inferolateral to the pregnancy. No surrounding haematoma or free fluid.
Previous lower uterine segment caesarean section scar. Normal endometrium. Trace free fluid in the pelvis.