{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:54:38Z","timestamp":1791381278523,"version":"4.3.3"},"reference-count":12,"publisher":"BMJ","issue":"10","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2026,9,18]]},"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:p>A Meckel\u2019s diverticulum is a blind-ending pouch that arises on the antimesenteric border of the terminal ileum. It is the most common gastrointestinal anomaly and the result of an incomplete obliteration of the vitelline duct during the first 8 weeks of gestation. The \u2018rule of two\u2019 is a mnemonic which refers to key characteristics of Meckel diverticula: it is found in 2% of the population, it is 2 inches long, 2 feet from the ileocaecal valve and twice as common in males. Only 2%\u20134% of those with a Meckel\u2019s develop complications in their lifetime. The majority present in early childhood with complications such as intussusception, bleeding and diverticulitis. Here we present a rare case of a giant Meckel\u2019s diverticulum measuring 22 cm\u00d711\u2009cm\u00d79.8\u2009cm, causing mass effect, small bowel volvulus and obstruction. The patient required an emergent laparotomy, resection and primary anastomosis.<\/jats:p>","DOI":"10.1136\/bcr-2026-274665","type":"journal-article","created":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T13:15:31Z","timestamp":1791378931000},"page":"e274665","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Meckel\u2019s diverticulum leading to axial torsion and volvulus of the small bowel"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-6927-307X","authenticated-orcid":false,"given":"Fabian","family":"Wehrmann","sequence":"first","affiliation":[{"name":"Colorectal Surgery, St Vincent\u2019s University Hospital, Dublin, Leinster, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niamh","family":"Keating","sequence":"additional","affiliation":[{"name":"General Surgery, St Vincent\u2019s University Hospital, Dublin, Leinster, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Munir","family":"Saeed","sequence":"additional","affiliation":[{"name":"Colorectal Surgery, St Vincent\u2019s University Hospital, Dublin, Leinster, Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,10,7]]},"reference":[{"key":"2026100706152570000_19.10.e274665.1","doi-asserted-by":"crossref","DOI":"10.1097\/MD.0000000000012154","article-title":"Systematic review of epidemiology, presentation, and management of Meckel\u2019s diverticulum in the 21st century","volume":"97","author":"Hansen","year":"2018","journal-title":"Medicine (Baltimore)"},{"key":"2026100706152570000_19.10.e274665.2","first-page":"353","article-title":"Complications of Meckel\u2019s diverticula in adults","volume":"49","author":"Dumper","year":"2006","journal-title":"Can J 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Rep"},{"key":"2026100706152570000_19.10.e274665.8","doi-asserted-by":"crossref","first-page":"47","DOI":"10.4240\/wjgs.v6.i3.47","article-title":"Giant Meckel\u2019s diverticulum: An exceptional cause of intestinal obstruction","volume":"6","author":"Akbulut","year":"2014","journal-title":"World J Gastrointest Surg"},{"key":"2026100706152570000_19.10.e274665.9","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1159\/000452690","article-title":"Intestinal Obstruction by Giant Meckel\u2019s Diverticulum","volume":"24","author":"Capel\u00e3o","year":"2017","journal-title":"GE Port J Gastroenterol"},{"key":"2026100706152570000_19.10.e274665.10","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1016\/j.radcr.2020.12.008","article-title":"Intermittent subacute obstruction of small bowel by Giant Meckel\u2019s Diverticulum- a case report","volume":"16","author":"Vasudha","year":"2021","journal-title":"Radiol Case Rep"},{"key":"2026100706152570000_19.10.e274665.11","doi-asserted-by":"crossref","first-page":"3000605211053554","DOI":"10.1177\/03000605211053554","article-title":"Axially torsional Meckel\u2019s diverticulum accompanied by small bowel volvulus: a case report","volume":"49","author":"Chen","year":"2021","journal-title":"J Int Med Res"},{"key":"2026100706152570000_19.10.e274665.12","doi-asserted-by":"crossref","first-page":"204","DOI":"10.4240\/wjgs.v6.i10.204","article-title":"Torsion of Meckel\u2019s diverticulum as a cause of small bowel obstruction: A case report","volume":"6","author":"Murruste","year":"2014","journal-title":"World J Gastrointest Surg"}],"container-title":["BMJ Case 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