{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T18:33:35Z","timestamp":1755801215785,"version":"3.44.0"},"reference-count":5,"publisher":"Danish Medical Association","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Ugeskr L\u00e6ger"],"abstract":"<jats:p>Heterotopic pregnancy is defined as a simultaneously intra- and extrauterine pregnancy. The condition is exceedingly rare, with an estimated incidence of one in 30,000 though more frequent in the presence of risk factors. In this case report, a 29-year-old woman, nine weeks pregnant, presented in the emergency department with lower abdominal pain worsening throughout the day. Ultrasound showed an intrauterine pregnancy and excess fluid in the pelvis. Laparoscopy revealed a tubal pregnancy and a salpingectomy was performed. The patient was discharged the following day with ongoing intrauterine pregnancy.<\/jats:p>","DOI":"10.61409\/v01250030","type":"journal-article","created":{"date-parts":[[2025,6,11]],"date-time":"2025-06-11T02:19:03Z","timestamp":1749608343000},"page":"1-4","source":"Crossref","is-referenced-by-count":0,"title":["Heterotopic pregnancy after natural conception"],"prefix":"10.61409","author":[{"given":"Lene Lund","family":"Andersen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Malin Zejlon","family":"Nylander","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marlene","family":"Mohr","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"40208","published-online":{"date-parts":[[2025,6,9]]},"reference":[{"key":"ref0","doi-asserted-by":"publisher","unstructured":"Oancea M, Ciortea R, Diculescu D et al. Spontaneous heterotopic pregnancy with unaffected intrauterine pregnancy: systematic review of clinical outcomes. Medicina (Kaunas). 2020;56(12):665. https:\/\/doi.org\/10.3390\/medicina56120665","DOI":"10.3390\/medicina56120665"},{"key":"ref1","doi-asserted-by":"publisher","unstructured":"Fatema N, Al Badi MM, Rahman M, Elawdy MM. Heterotopic pregnancy with natural conception; a rare event that is still being misdiagnosed: a case report. Clin Case Rep. 2016;4(3):272-5. https:\/\/doi.org\/10.1002\/ccr3.502","DOI":"10.1002\/ccr3.502"},{"key":"ref2","doi-asserted-by":"publisher","unstructured":"Nguyen KP, Hudspeth M, Milestone H. Spontaneous heterotopic pregnancy: diagnosis and management. Case Rep Obstet Gynecol. 2022;2022:2994808. https:\/\/doi.org\/10.1155\/2022\/2994808","DOI":"10.1155\/2022\/2994808"},{"key":"ref3","doi-asserted-by":"publisher","unstructured":"Chadee A, Rezai S, Kirby C et al. Spontaneous heterotopic pregnancy: dual case report and review of literature. Case Rep Obstet Gynecol. 2016;2016:2145937. https:\/\/doi.org\/10.1155\/2016\/2145937","DOI":"10.1155\/2016\/2145937"},{"key":"ref4","doi-asserted-by":"publisher","unstructured":"Shenoy VB, Buckley CJ. Natural conception resulting in a ruptured heterotopic pregnancy in a multiparous woman. Proc (Bayl Univ Med Cent). 2019;33(1):93-94. https:\/\/doi.org\/10.1080\/08998280.2019.1670324","DOI":"10.1080\/08998280.2019.1670324"}],"container-title":["Ugeskrift for L\u00e6ger"],"original-title":[],"deposited":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T13:38:32Z","timestamp":1755697112000},"score":1,"resource":{"primary":{"URL":"https:\/\/ugeskriftet.dk\/videnskab\/V01250030"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,9]]},"references-count":5,"URL":"https:\/\/doi.org\/10.61409\/v01250030","relation":{},"ISSN":["0041-5782","1603-6824"],"issn-type":[{"type":"print","value":"0041-5782"},{"type":"electronic","value":"1603-6824"}],"subject":[],"published":{"date-parts":[[2025,6,9]]}}}