Lessons learnt from a rare case of splenic ectopic pregnancy

[Extract]
A healthy 31-year-old nulliparous female presented to the Gold Coast University Hospital in 2019 with intermittent left lower quadrant abdominal pain for several days. Her last menstrual period was 7 weeks prior and serum beta-human chorionic gonadotrophin (βHCG) was 12 725 IU/L. Examination and initial bloods were unremarkable. Transvaginal ultrasound revealed an empty uterine cavity with a 3-cm haemorrhagic cyst on her left ovary and a small volume of free fluid in the pouch of Douglas. Suspecting an ectopic pregnancy, an abdominal ultrasound was arranged to assess for uncommon sites of implantation. It revealed an 8 × 1.2 × 0.9 mm anechoic mass, located on the inferior pole of the spleen with a visualized yolk sac and cardiac activity.