{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T10:29:03Z","timestamp":1760956143474,"version":"3.44.0"},"reference-count":13,"publisher":"BMJ","issue":"12","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2021,11,18]]},"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:p>The aetiological diagnosis of cystic masses detected on routine ultrasound during pregnancy can be challenging. Unless approached cautiously with a detailed history and adequate use of imaging techniques, misdiagnosis of these cystic masses are not uncommon. Cystic masses diagnosed during pregnancy are mostly of ovarian origin; however, other non-ovarian cystic masses are also detected incidentally or at laparotomy\/laparoscopy. We report a rare case of ruptured biliary cystadenoma in a pregnant woman diagnosed at emergency laparotomy. She was taken up for surgery with a provisional impression of ruptured adnexal cyst. However, the cyst was found to be arising from the liver and the histology of the cyst wall was reported as biliary cystadenoma.<\/jats:p>","DOI":"10.1136\/bcr-2021-246392","type":"journal-article","created":{"date-parts":[[2021,12,14]],"date-time":"2021-12-14T11:33:17Z","timestamp":1639481597000},"page":"e246392","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Biliary cystadenoma masquerading as an adnexal cyst in pregnancy"],"prefix":"10.1136","volume":"14","author":[{"given":"Preethi","family":"Raja Navaneethan","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynaecology, Christian Medical College and Hospital Vellore, Vellore, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anuja","family":"Abraham","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynaecology, Christian Medical College and Hospital Vellore, Vellore, 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