{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T06:04:59Z","timestamp":1781071499070,"version":"3.54.1"},"reference-count":6,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T00:00:00Z","timestamp":1781049600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Oncol."],"abstract":"<jats:p>Carcinoid tumor is a rare neuroendocrine neoplasm, and primary ovarian carcinoid is extremely uncommon. Ovarian carcinoid during pregnancy is exceptionally rare and diagnostically challenging. We report the case of a 30-year-old primigravida who underwent cesarean section for fetal distress, during which a left ovarian cyst was incidentally found. Pathological examination revealed a mature cystic teratoma with carcinoid (trabecular type). The patient underwent laparoscopic adnexectomy six weeks after cesarean delivery with curative intent. Final pathological staging was FIGO IA. Maternal and neonatal outcomes were favorable, with no evidence of recurrence during 18 months of follow-up. This case highlights the clinicopathological features, diagnostic challenges, management strategies, and prognosis of ovarian carcinoid during pregnancy and aims to enhance clinical awareness.<\/jats:p>","DOI":"10.3389\/fonc.2026.1793002","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T05:40:54Z","timestamp":1781070054000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Occult ovarian carcinoid in pregnancy: a case report and literature review"],"prefix":"10.3389","volume":"16","author":[{"given":"Yong","family":"Zhu","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, People\u2019s Liberation Army General Hospital of Central Theater Command","place":["Wuhan, Hubei, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanqing","family":"Wu","sequence":"additional","affiliation":[{"name":"The 970th Hospital of the Joint Logistics Support Force of the Chinese People\u2019s Liberation Army","place":["Weihai, Shandong, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, People\u2019s Liberation Army General Hospital of Central Theater Command","place":["Wuhan, Hubei, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,6,10]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1201\/9780429197338-60","article-title":"Pure primary ovarian carcinoid tumor with carcinoid syndrome and cervical carcinoma: A rare concoction of dual primary Malignancies","volume":"64","author":"Mishra","year":"2021","journal-title":"Indian J Pathol Microbiol"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.21873\/anticanres.13697","article-title":"Metastatic bilateral strumal carcinoid: A case report and review of the literature","volume":"39","author":"Borghese","year":"2019","journal-title":"Anticancer Res"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.5468\/ogs.2017.60.6.602","article-title":"Peptide YY producing strumal carcinoid tumor of the ovary in a postmenopausal woman: A rare cause of chronic constipation","volume":"60","author":"Noh","year":"2017","journal-title":"Obstet Gynecol Sci"},{"key":"B4","doi-asserted-by":"publisher","DOI":"10.7759\/cureus.77013","article-title":"Mixed trabecular and mucinous carcinoid arising in the background of a mature ovarian cystic teratoma","volume":"17","author":"Ali","year":"2025","journal-title":"Cureus"},{"key":"B5","doi-asserted-by":"publisher","DOI":"10.3889\/oamjms.2018.138","article-title":"Ovarian strumal carcinoid tumour: Case report","volume":"6","author":"Antovska","year":"2018","journal-title":"Open Access Maced J Med Sci"},{"key":"B6","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1186\/s13000-022-01217-4","article-title":"Endocrine cell micronests in an ovarian mucinous borderline tumor: A potential diagnostic pitfall for microinvasion","volume":"17","author":"Collins","year":"2022","journal-title":"Diagn Pathol"}],"container-title":["Frontiers in Oncology"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fonc.2026.1793002\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T05:40:59Z","timestamp":1781070059000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fonc.2026.1793002\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,10]]},"references-count":6,"alternative-id":["10.3389\/fonc.2026.1793002"],"URL":"https:\/\/doi.org\/10.3389\/fonc.2026.1793002","relation":{},"ISSN":["2234-943X"],"issn-type":[{"value":"2234-943X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,10]]},"article-number":"1793002"}}