{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T18:57:53Z","timestamp":1790794673675,"version":"4.1.0"},"reference-count":9,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"vor","delay-in-days":30,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,31]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Lymphoma presenting as an acute abdomen is rare in adults and is more commonly seen in children, particularly with Burkitt or diffuse large B-cell lymphoma. Approximately 1 per cent of appendicectomy specimens contain neoplasms, with only a very small proportion (~0.015 per cent) representing primary appendiceal lymphomas. A man in his 50s with no prior history of malignancy presented with a two-day history of right iliac fossa pain. Computed tomography demonstrated features consistent with acute appendicitis, without features suggestive of malignancy. A laparoscopic appendicectomy was performed without complication. Histopathological examination confirmed acute transmural appendicitis and mantle cell lymphoma (MCL) involving the appendiceal lymphoid tissue. The lymphoma was non-mass-forming and would likely have remained undetected without routine immunohistochemical analysis. This report describes a rare presentation of previously undiagnosed MCL identified alongside acute appendicitis, highlighting the importance of routine histopathological examination, even when intraoperative and radiological findings are consistent with uncomplicated appendicitis.<\/jats:p>","DOI":"10.1093\/jscr\/rjag856","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T11:43:46Z","timestamp":1790682226000},"source":"Crossref","is-referenced-by-count":0,"title":["Acute abdominal presentation of mantle cell lymphoma mimicking acute appendicitis: a case report"],"prefix":"10.1093","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7665-2361","authenticated-orcid":false,"given":"Marena","family":"Gray","sequence":"first","affiliation":[{"name":"Department of Surgery, Addenbrooke\u2019s CUH NHS Foundation Trust , Hills Rd., Cambridge, Cambridgeshire, CB2 0QQ ,","place":["United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3620-4462","authenticated-orcid":false,"given":"Ilias Marios","family":"Oikonomou","sequence":"additional","affiliation":[{"name":"Department of Surgery, Addenbrooke\u2019s CUH NHS Foundation Trust , Hills Rd., Cambridge, Cambridgeshire, CB2 0QQ ,","place":["United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad","family":"Limbada","sequence":"additional","affiliation":[{"name":"Department of Radiology, Addenbrooke\u2019s CUH NHS Foundation Trust , Hills Rd., CB2 0QQ, Cambridge, Cambridgeshire ,","place":["United Kingdom"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stavros","family":"Gourgiotis","sequence":"additional","affiliation":[{"name":"Department of Surgery, Addenbrooke\u2019s CUH NHS Foundation Trust , Hills Rd., Cambridge, Cambridgeshire, CB2 0QQ ,","place":["United 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1992\u20132001","volume":"107","author":"Morton","year":"2006","journal-title":"Blood"},{"key":"2026093014272182200_ref4","doi-asserted-by":"crossref","first-page":"645","DOI":"10.1148\/rg.233025134","article-title":"Primary neoplasms of the appendix: radiologic spectrum of disease with pathologic correlation","volume":"23","author":"Pickhardt","year":"2003","journal-title":"Radiographics"},{"key":"2026093014272182200_ref5","first-page":"765","article-title":"Mantle cell lymphoma with gastrointestinal involvement: clinical features and outcome","volume":"93","author":"Vetro","year":"2014","journal-title":"Ann Hematol"},{"key":"2026093014272182200_ref6","first-page":"349","article-title":"The spectrum of mantle cell lymphoma: from in situ neoplasia to aggressive disease","volume":"476","author":"Alaggio","year":"2020","journal-title":"Virchows Arch"},{"key":"2026093014272182200_ref7","doi-asserted-by":"crossref","DOI":"10.1136\/bmjopen-2019-035912","article-title":"Safety and cost analysis of selective histopathological examination following appendicectomy and cholecystectomy (FANCY study): protocol and statistical analysis plan of a prospective observational multicentre study","volume":"9","author":"Bastiaenen","year":"2019","journal-title":"BMJ Open"},{"key":"2026093014272182200_ref8","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1186\/1471-2482-7-17","article-title":"The value of routine histopathological examination of appendicectomy specimens","volume":"7","author":"Jones","year":"2007","journal-title":"BMC Surg"},{"key":"2026093014272182200_ref9","doi-asserted-by":"crossref","first-page":"1123","DOI":"10.2214\/ajr.178.5.1781123","article-title":"Non-Hodgkin\u2019s lymphoma of the appendix","volume":"178","author":"Pickhardt","year":"2002","journal-title":"Am J Roentgenol"}],"container-title":["Journal of Surgical Case 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