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This case highlights the importance of avoiding early diagnostic closure and adherence to oncological principles of resection for small bowel tumours.<\/jats:p>","DOI":"10.1136\/bcr-2024-261728","type":"journal-article","created":{"date-parts":[[2025,1,14]],"date-time":"2025-01-14T07:00:22Z","timestamp":1736838022000},"page":"e261728","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Concurrent leiomyosarcoma causing small bowel obstruction in a patient with non-Hodgkin lymphoma"],"prefix":"10.1136","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-2255-3048","authenticated-orcid":false,"given":"Andrew","family":"Sealey","sequence":"first","affiliation":[{"name":"The University of Sydney, Camperdown, New South Wales, Australia"},{"name":"General Surgery, Canberra Hospital, Garran, Australian Capital Territory, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sean Stuart","family":"Davis","sequence":"additional","affiliation":[{"name":"General Surgery, Central Adelaide Local Health Network, Adelaide, South Australia, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Krishanth","family":"Naidu","sequence":"additional","affiliation":[{"name":"Colorectal Surgery, Monash Health, Clayton, Victoria, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,1,14]]},"reference":[{"key":"2025082703573638000_18.1.e261728.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mcna.2008.01.003"},{"key":"2025082703573638000_18.1.e261728.2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9610(00)00407-4"},{"key":"2025082703573638000_18.1.e261728.3","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1016\/j.ijsu.2006.05.006","article-title":"Primary tumors of jejunum and ileum as a cause of intestinal obstruction: a case control study","volume":"5","author":"Beltran","year":"2007","journal-title":"Int J Surg"},{"key":"2025082703573638000_18.1.e261728.4","doi-asserted-by":"publisher","DOI":"10.1111\/j.1445-2197.2005.03590.x"},{"key":"2025082703573638000_18.1.e261728.5","doi-asserted-by":"publisher","DOI":"10.1111\/j.1572-0241.2006.00854.x"},{"key":"2025082703573638000_18.1.e261728.6","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-200305000-00006"},{"key":"2025082703573638000_18.1.e261728.7","doi-asserted-by":"publisher","DOI":"10.1097\/00004836-200004000-00017"},{"key":"2025082703573638000_18.1.e261728.8","doi-asserted-by":"crossref","DOI":"10.1136\/bmj.f5588","article-title":"Burden of adhesions in abdominal and pelvic surgery: systematic review and met-analysis","volume":"347","author":"ten Broek","year":"2013","journal-title":"BMJ"},{"key":"2025082703573638000_18.1.e261728.9","first-page":"353","article-title":"Small-bowel obstruction secondary to malignant disease: an 11-year audit","volume":"43","author":"Miller","year":"2000","journal-title":"Can J Surg"},{"key":"2025082703573638000_18.1.e261728.10","doi-asserted-by":"crossref","first-page":"4756","DOI":"10.1002\/cncr.26105","article-title":"Soft tissue sarcoma diagnosed subsequent to lymphoma is associated with prior radiotherapy and decreased survival","volume":"117","author":"Katz","year":"2011","journal-title":"Cancer"},{"key":"2025082703573638000_18.1.e261728.11","doi-asserted-by":"crossref","first-page":"499","DOI":"10.3171\/2013.3.JNS121707","article-title":"Concurrent occurrence of primary intracranial Epstein-Barr virus\u2013associated leiomyosarcoma and Hodgkin lymphoma in a young adult","volume":"119","author":"Takei","year":"2013","journal-title":"JNS"},{"key":"2025082703573638000_18.1.e261728.12","first-page":"42","article-title":"Extranodal involvement in lymphoma - 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