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The authors present a case of duodenal web and concurrent annular pancreas with a positive family history of congenital duodenal obstruction in the infant\u2019s father. We discuss how knowledge of familial occurrence of the condition can promote early diagnosis after birth and propose the potential role for preconception genetic counselling for parents with a personal or family history of congenital duodenal obstruction.<\/jats:p>","DOI":"10.1136\/bcr-2025-267876","type":"journal-article","created":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T14:30:36Z","timestamp":1774449036000},"page":"e267876","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Familial congenital duodenal obstruction"],"prefix":"10.1136","volume":"19","author":[{"given":"Dylan","family":"Sheikhzadeh","sequence":"first","affiliation":[{"name":"Curtin University Medical Faculty, Perth, Western Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Isira","family":"Parahitiyawa","sequence":"additional","affiliation":[{"name":"Curtin University Medical Faculty, Perth, Western Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karthikeyan","family":"Kulasekaran","sequence":"additional","affiliation":[{"name":"Curtin University Medical Faculty, Perth, Western Australia, Australia"},{"name":"SJOG Midland Hospital, Midland, Western Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0760-3544","authenticated-orcid":false,"given":"Chia","family":"Saw","sequence":"additional","affiliation":[{"name":"Curtin University Medical Faculty, Perth, Western Australia, Australia"},{"name":"Paediatric, SJOG Midland Public Hospital, Midland, Western Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2026,3,25]]},"reference":[{"key":"2026032507301163000_19.3.e267876.1","unstructured":"Hall NJ . 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