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Intraoperatively, her bowel was covered with lymphoma nodules, and bulky mesenteric nodules of small bowel and colon were seen. The histology shows mantle cell lymphoma, a rare subtype of B cell non-Hodgkin\u2019s lymphoma. She recovered well postoperatively and was started on chemotherapy (Nordic protocol) early.<\/jats:p>","DOI":"10.1136\/bcr-2022-253711","type":"journal-article","created":{"date-parts":[[2023,1,11]],"date-time":"2023-01-11T10:55:16Z","timestamp":1673434516000},"page":"e253711","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Mantle cell lymphoma presenting as intussuscepting ascending colon mass"],"prefix":"10.1136","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7620-0303","authenticated-orcid":false,"given":"Lydia Li Yeh","family":"Tan","sequence":"first","affiliation":[{"name":"General Surgery, National University Hospital, Singapore"},{"name":"General Surgery, Ng Teng Fong General Hospital, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Heidi","family":"Chang","sequence":"additional","affiliation":[{"name":"General Surgery, Ng Teng Fong General Hospital, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ishara","family":"Maduka","sequence":"additional","affiliation":[{"name":"General Surgery, Ng Teng Fong General Hospital, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2023,1,11]]},"reference":[{"key":"2025082711322962000_16.1.e253711.1","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.v13.i26.3641"},{"key":"2025082711322962000_16.1.e253711.2","doi-asserted-by":"publisher","DOI":"10.1002\/jso.21117"},{"key":"2025082711322962000_16.1.e253711.3","unstructured":"Lynch DT , Koya S , Acharya U . 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