{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T20:18:29Z","timestamp":1780949909243,"version":"3.54.1"},"reference-count":12,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T00:00:00Z","timestamp":1668038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Patent urachus is a type of urachal anomaly in which the urachus does not tail off but remains connected to the bladder in the umbilicus. The prevalence of patent urachus is very low. Herein, we report a case of patent urachus ruptured and exposed to amniotic fluid in utero. In this case, the size decreased after the second trimester, which was thought to be due to rupture in utero. After delivery, patent urachus was confirmed by inserting a foley catheter, which runs through a ruptured cyst on umbilical cord insertion. The day after delivery, the neonate underwent surgical excision of the urachal cyst and closing umbilicus. The mechanism of patent urachus rupture is unknown. As the fetus matures, it is thought that the higher intravesical pressure may affect the rupture of the cyst. Patent urachus could be ruptured in the uterus spontaneously, and surgical correction is needed. Therefore, prenatal differential diagnosis is important.<\/jats:p>","DOI":"10.3390\/medicina58111621","type":"journal-article","created":{"date-parts":[[2022,11,10]],"date-time":"2022-11-10T19:17:34Z","timestamp":1668107854000},"page":"1621","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Prenatally Ruptured Patent Urachus: A Case Report and Review of Literature"],"prefix":"10.3390","volume":"58","author":[{"given":"Ji-Young","family":"Kwon","sequence":"first","affiliation":[{"name":"Department of Medicine, Graduate School, Kyung Hee University, 26 Kyungheedau-ro, Dongdaemun-gu, Seoul 02447, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8601-1701","authenticated-orcid":false,"given":"Seung-Yeon","family":"Pyeon","sequence":"additional","affiliation":[{"name":"Department of Medicine, Graduate School, Kyung Hee University, 26 Kyungheedau-ro, Dongdaemun-gu, Seoul 02447, Korea"},{"name":"Department of Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, 892 Dongnam-ro, Gangdong-gu, Seoul 05278, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"124","DOI":"10.12688\/f1000research.6546.1","article-title":"Case Report: Pre-and postnatal management of an allantoic cyst with patent urachus and single umbilical artery","volume":"4","author":"Thach","year":"2015","journal-title":"F1000Research"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1002\/uog.12361","article-title":"Bladder emptying into an umbilical cord cyst: Prenatal sonographic sign of allantoic cyst with patent urachus","volume":"42","author":"Rasteiro","year":"2012","journal-title":"Ultrasound Obstet. Gynecol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"156","DOI":"10.3109\/00016349409013420","article-title":"Sonographic diagnosis of a urachal cyst in utero","volume":"73","author":"Awwad","year":"1994","journal-title":"Acta Obstet. Gynecol. Scand."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"3978","DOI":"10.1007\/s00261-019-02205-x","article-title":"Imaging of urachal anomalies","volume":"44","author":"Buddha","year":"2019","journal-title":"Abdom. Radiol."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"422","DOI":"10.1046\/j.1469-0705.1997.09060422.x","article-title":"Unusual fate of vesicoallantoic cyst with non-visualization of fetal urinary bladder in a case of patent urachus","volume":"9","author":"Yoo","year":"1997","journal-title":"Ultrasound Obstet. 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Surg."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1007\/s10396-017-0856-8","article-title":"Prolapsed bladder following rupture of patent urachal cyst, mimicking bladder exstrophy: A case report and literature review","volume":"45","author":"Srisupundit","year":"2018","journal-title":"J. Med. Ultrason."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1007\/s12098-008-0218-z","article-title":"Allantoic cyst and patent urachus","volume":"76","author":"Pal","year":"2008","journal-title":"Indian J. Pediatr."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1002\/uog.8910","article-title":"Allatoic cysts and posterior urethral valves: A case report","volume":"38","author":"Bureau","year":"2011","journal-title":"Ultrasound Obs. 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