{
  "abstract": "We present a case of a woman in her 20s with right iliac fossa pain. Initial investigations showed mildly elevated inflammatory markers and serum beta human chorionic gonadotrophin (hCG) <1 mIU/mL. She was taken to theatres as a presumed early appendicitis but found to have haemoperitoneum with a free-floating cystic structure in the pouch of Douglas with intact pelvic organs. This was subsequently confirmed histologically as a gestational sac which had likely been expelled via the abdominal ostia into the peritoneal cavity (a so-called complete tubal abortion). She made a good postoperative recovery and was discharged with no complications. This case highlights the rare but important potential for ectopic pregnancy and its complications to be present despite a negative serum beta-hCG.",
  "authors": [
    {
      "affiliations": [
        "Emergency Department, Fiona Stanley Hospital, Murdoch, Western Australia, Australia"
      ],
      "name": "Katie Collis"
    },
    {
      "affiliations": [
        "Ealing Hospital, Southall, UK"
      ],
      "name": "Shoaib Ashfaq"
    },
    {
      "affiliations": [
        "Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK"
      ],
      "name": "Cecilia Cirelli"
    },
    {
      "affiliations": [
        "Surgery, Ealing Hospital, Southall, UK"
      ],
      "name": "Hemant Sheth"
    }
  ],
  "title": "Laparoscopy-confirmed complete tubal abortion of an ectopic pregnancy with undetectable urine and serum beta-hCG levels",
  "uid": "c7b9e6dc-3233-543f-92df-145db667ebe4"
}