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She was admitted to our department at 24\u2009+\u20096 weeks of in vitro fertilization gestation with a surgical history of endometriosis. The patient\u2019s non-specific presentation posed diagnostic difficulties and intestinal obstruction was initially suspected. Emergent computed tomographic findings showed massive free abdominal fluid, which was suspected to have arisen from the left ovary or uterus. During an emergency exploratory laparotomy, she had interrupted suturing of a ruptured left uterine subserosal vein performed. Computed tomographic imaging is more helpful for isolating the source of bleeding than ultrasound. Prompt action of an exploratory laparotomy can result in favorable outcomes for the mother and newborn in spontaneous hemoperitoneum in pregnancy.<\/jats:p>","DOI":"10.1177\/03000605251317995","type":"journal-article","created":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T07:32:23Z","timestamp":1740727943000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Spontaneous hemoperitoneum in the second trimester of pregnancy with a favorable outcome: a case report"],"prefix":"10.1177","volume":"53","author":[{"given":"Lirong","family":"Fu","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Shanghai Songjiang District Central Hospital, 748 Zhongshan Middle Road, Songjiang District, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4580-7329","authenticated-orcid":false,"given":"Li","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Women and Children\u2019s Hospital of Ningbo University, 339 Liuting Street, Ningbo, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lijuan","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Shanghai Songjiang District Central Hospital, 748 Zhongshan Middle Road, Songjiang District, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peirong","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Shanghai Songjiang District Central Hospital, 748 Zhongshan Middle Road, Songjiang District, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kai","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Radiology, Shanghai Songjiang District Central Hospital, 748 Zhongshan Middle Road, Songjiang District, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3374-7787","authenticated-orcid":false,"given":"Zhuyun","family":"Ding","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Shanghai Songjiang District Central Hospital, 748 Zhongshan Middle Road, Songjiang District, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,2,28]]},"reference":[{"key":"bibr1-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.14833"},{"key":"bibr2-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1111\/aogs.14431"},{"key":"bibr3-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1111\/1471-0528.17556"},{"key":"bibr4-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2017.10.012"},{"key":"bibr5-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.jogoh.2022.102415"},{"key":"bibr6-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2023.03.018"},{"key":"bibr7-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1111\/head.12246"},{"key":"bibr8-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.jogc.2022.10.014"},{"key":"bibr9-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1136\/bcr-2023-257344"},{"key":"bibr10-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2016.05.025"},{"key":"bibr11-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.fertnstert.2020.10.030"},{"key":"bibr12-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1186\/s12245-023-00498-w"},{"key":"bibr13-03000605251317995","first-page":"262","volume":"15","author":"Cozzolino M","year":"2015","journal-title":"Ochsner J"},{"key":"bibr14-03000605251317995","first-page":"3480287","volume":"2017","author":"Rafi J","year":"2017","journal-title":"Case Rep Obstet Gynecol"},{"key":"bibr15-03000605251317995","first-page":"e32897","volume":"14","author":"Gomes Pereira JP","year":"2022","journal-title":"Cureus"},{"key":"bibr16-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1111\/jog.14819"},{"key":"bibr17-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2022.107603"},{"key":"bibr18-03000605251317995","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.08.2231"},{"key":"bibr19-03000605251317995","doi-asserted-by":"publisher","DOI":"10.1148\/rg.2020190166"},{"key":"bibr20-03000605251317995","unstructured":"American College of Radiology and Society of Pediatric Radiology. 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