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An upper gastrointestinal contrast study revealed duodenal dilation and blockage of the third part of the duodenum. The AAA continued to enlarge over the subsequent 3\u2005months and the intra-abdominal visceral fat volume decreased over 1\u2005month. The aortomesentric angle and distance remained within normal ranges. Ultimately, the patient was diagnosed with aortoduodenal syndrome. In the present case, a duodenal obstruction was caused by the combination of an enlarged AAA and reduced intra-abdominal visceral fat in a patient receiving maintenance haemodialysis.<\/jats:p>","DOI":"10.1136\/bcr-2014-206326","type":"journal-article","created":{"date-parts":[[2014,11,11]],"date-time":"2014-11-11T10:07:53Z","timestamp":1415700473000},"page":"bcr2014206326","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Aortoduodenal syndrome in a patient receiving maintenance haemodialysis"],"prefix":"10.1136","volume":"2014","author":[{"given":"Susumu","family":"Saigusa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masaki","family":"Ohi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroki","family":"Imaoka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuhiro","family":"Inoue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2014,11,11]]},"reference":[{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.1","doi-asserted-by":"crossref","first-page":"1089","DOI":"10.1016\/S0140-6736(01)69613-2","article-title":"Aneurysm of the abdominal aorta","volume":"2","author":"Osler","year":"1905","journal-title":"Lancet"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvs.2004.04.028"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.3","doi-asserted-by":"crossref","first-page":"W6","DOI":"10.1308\/147870809X450575","article-title":"Superior mesenteric artery syndrome in association with an abdominal aortic aneurysm","volume":"91","author":"Pal","year":"2009","journal-title":"Ann R Coll Surg Engl"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.4","doi-asserted-by":"publisher","DOI":"10.2310\/6670.2008.00068"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.5","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2796.2005.01456.x"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.6","doi-asserted-by":"publisher","DOI":"10.1007\/s11605-008-0695-4"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.7","doi-asserted-by":"publisher","DOI":"10.1159\/000102097"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.8","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9610(84)90339-8"},{"key":"2025042706535329000_2014.nov11_1.bcr2014206326.9","doi-asserted-by":"crossref","unstructured":"Esposito A , Menna D , Mansour W , et al . 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