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Endoscopy should be considered for early workup of vague gastrointestinal symptoms, even in younger patients, if they have been on long-standing immunosuppression.<\/jats:p>","DOI":"10.1136\/bcr-2023-256166","type":"journal-article","created":{"date-parts":[[2023,8,22]],"date-time":"2023-08-22T12:25:40Z","timestamp":1692707140000},"page":"e256166","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Diffuse large B-cell lymphoma presenting as an ileocaecal mass in a post-transplant patient"],"prefix":"10.1136","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1181-0669","authenticated-orcid":false,"given":"Shyam","family":"Patel","sequence":"first","affiliation":[{"name":"School of Medicine, University of California San Francisco, San Francisco, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Won-Tak","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Pathology, University of California San Francisco, San Francisco, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charalambos","family":"Andreadis","sequence":"additional","affiliation":[{"name":"Division of Hematology and Oncology, University of California San Francisco Department of Medicine, San Francisco, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aparajita","family":"Singh","sequence":"additional","affiliation":[{"name":"Division of Gastroenterology and Hepatology, University of California San Francisco Department of Medicine, San Francisco, California, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2023,8,22]]},"reference":[{"key":"2025082801524181000_16.8.e256166.1","doi-asserted-by":"publisher","DOI":"10.1182\/blood-2016-01-643569"},{"key":"2025082801524181000_16.8.e256166.2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1008282818705"},{"key":"2025082801524181000_16.8.e256166.3","first-page":"80","article-title":"Lymphoma of the colon","volume":"21","author":"Romaguera","year":"2005","journal-title":"Curr Opin Gastroenterol"},{"key":"2025082801524181000_16.8.e256166.4","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(05)80084-4"},{"key":"2025082801524181000_16.8.e256166.5","doi-asserted-by":"crossref","first-page":"447","DOI":"10.5581\/1516-8484.20120111","article-title":"Pathophysiology and molecular aspects of diffuse large B-cell lymphoma","volume":"34","author":"Gouveia","year":"2012","journal-title":"Rev Bras Hematol Hemoter"},{"key":"2025082801524181000_16.8.e256166.6","unstructured":"Padala S . 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