{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T00:59:23Z","timestamp":1791939563650,"version":"4.3.4"},"reference-count":21,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2019,4,23]],"date-time":"2019-04-23T00:00:00Z","timestamp":1555977600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Prenatal Diagnosis"],"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To gather additional data on pregnancy outcome when a chorionic bump is detected at the time of the 11\u2010 to 13\u2010week scan.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The presence of a chorionic bump was prospectively recorded in a database of women presenting for their first\u2010trimester sonographic screening. Clinically relevant information was obtained by reviewing ultrasound reports and medical records or contacting the referring obstetrician or the parents themselves.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>During a 4.5\u2010year study period from June 2014 to December 2018, a chorionic bump was identified in 23 out of 3375 pregnancies, for a prevalence of 1\/147 or 0.7%. All women were asymptomatic at the time of evaluation. The chorionic bump was single in 21 (91%) cases, located in the central part of the placenta in 17 (74%) cases, and the median largest diameter was 20\u00a0mm (range, 10\u201043). Although the placenta was low\u2010lying in 14 (61%) cases, all but one patient had a normally located placenta at the midtrimester anatomy scan. With the exception of one pregnancy complicated with trisomy 21, the outcome was universally good.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our experience suggests that a chorionic bump detected during the 11\u2010 to 13\u2010week scan is usually a transient, is incidental finding, and probably has no clinical significance.<\/jats:p><\/jats:sec>","DOI":"10.1002\/pd.5454","type":"journal-article","created":{"date-parts":[[2019,3,28]],"date-time":"2019-03-28T01:28:10Z","timestamp":1553736490000},"page":"471-476","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Chorionic bump at 11 to 13 weeks' gestation: Prevalence and clinical significance"],"prefix":"10.1002","volume":"39","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3856-574X","authenticated-orcid":false,"given":"Waldo","family":"Sepulveda","sequence":"first","affiliation":[{"name":"FETALMED\u2013Maternal\u2010Fetal Diagnostic Center Fetal Imaging Unit  Santiago Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,4,23]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2006.25.6.757"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.20544"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.20755"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.12528"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.17772\/gp\/1680"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.7863\/ultra.34.1.137"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.7863\/ultra.34.4.553"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.22370"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.22417"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/jum.14240"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmu.2017.04.004"},{"key":"e_1_2_8_13_1","article-title":"Chorionic bump in a pregnant patient with a history of infertility","volume":"2018","author":"Carvalho RS","year":"2018","journal-title":"BMJ Case Rep"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1159\/000493477"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/sono.12168"},{"key":"e_1_2_8_16_1","first-page":"53","volume-title":"Perinatal Guidelines 2015","author":"Crocco P","year":"2015"},{"key":"e_1_2_8_17_1","unstructured":"The Fetal Medicine Foundation.The 11\u201313 weeks scan.https:\/\/fetalmedicine.org\/education\/the\u201011\u201013\u2010weeks\u2010scan(accessed December 2018)."},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.AOG.0000259311.87056.5e"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.7863\/jum.2006.25.8.963"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/pd.2685"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/pd.2637"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/pd.2644"}],"container-title":["Prenatal Diagnosis"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fpd.5454","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/pd.5454","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/pd.5454","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/pd.5454","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,10]],"date-time":"2023-09-10T12:58:05Z","timestamp":1694350685000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/pd.5454"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,4,23]]},"references-count":21,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2019,5]]}},"alternative-id":["10.1002\/pd.5454"],"URL":"https:\/\/doi.org\/10.1002\/pd.5454","archive":["Portico"],"relation":{},"ISSN":["0197-3851","1097-0223"],"issn-type":[{"value":"0197-3851","type":"print"},{"value":"1097-0223","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,4,23]]},"assertion":[{"value":"2019-01-31","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-03-20","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-04-23","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}