{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T00:20:10Z","timestamp":1789172410526,"version":"build-2803163510"},"reference-count":27,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,1,27]],"date-time":"2021-01-27T00:00:00Z","timestamp":1611705600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pathology International"],"published-print":{"date-parts":[[2021,3]]},"abstract":"<jats:p>Interferon regulatory factor 4 (IRF4) rearrangement is commonly detected in patients with a range of lymphoproliferative malignancies, including myelomas, large B cell lymphomas and low\u2010grade B cell neoplasms. However, IRF4 rearrangement is generally a relatively rare finding in these latter two cancer types. In the present article, we describe and summarize the clinicopathological and genetic features of 13 cases of B cell lymphoma with IRF4 rearrangement, including 12 cases of large B cell lymphoma and one case of low\u2010grade lymphoma exhibiting such rearrangement. These cases were detected in six females and seven males between 14 and 71 years of age. From a morphological perspective, large B cell lymphoma tumors included in this analysis exhibited large neoplastic cells in diffuse or follicular patterns, while the case of low\u2010grade lymphoma mainly composed of small lymphocytes. All analyzed cases exhibited a split in the IRF4 gene consistent with IRF4 translocation. Three of six analyzed large B cell lymphoma cases harbored IGLL5 mutations. Mutations in SAMHD1 were detected in the low\u2010grade lymphoma with IRF4 rearrangement case. In summary, our results offer further insight into the morphological and molecular heterogeneity of cases of B cell lymphoma exhibiting IRF4 rearrangements.<\/jats:p>","DOI":"10.1111\/pin.13067","type":"journal-article","created":{"date-parts":[[2021,1,27]],"date-time":"2021-01-27T19:42:30Z","timestamp":1611776550000},"page":"183-190","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["B cell lymphoma with IRF4 rearrangement: A clinicopathological study of 13 cases"],"prefix":"10.1111","volume":"71","author":[{"given":"Luting","family":"Zhou","sequence":"first","affiliation":[{"name":"Department of Pathology, Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Gu","sequence":"additional","affiliation":[{"name":"Shanghai Histo Pathology Diagnosis Center Shanghai 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