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They consisted of two men and four women with a median age of 71 years, and were examined in an autopsy (<jats:italic>n<\/jats:italic>\u2009=\u20091) and biopsies from the adrenal gland (<jats:italic>n<\/jats:italic>\u2009=\u20092), skin (<jats:italic>n<\/jats:italic>\u2009=\u20091), pelvic cavity (<jats:italic>n<\/jats:italic>\u2009=\u20091), and kidney (<jats:italic>n<\/jats:italic>\u2009=\u20091). All showed a monomorphic population of large transformed B\u2010cells leading to diagnoses of DLBCL with two intravascular large B\u2010cell lymphoma (IVLBCL) and one de novo CD5+ type and were featured by an invariable immunephenotype: CD3\u2010, CD20+, BCL\u20102+, and MUM1+. In addition, CD5 and CD10 were each detected in one case. All cases expressed PD\u2010L1 on &gt;10% to &gt;90% of tumor cells, which was confirmed with two other PD\u2010L1 antibodies (E1J2J and 28\u20108). Three untreated patients had a rapid, lethal clinical course within 7 months after diagnosis; while, the remaining three achieved complete remission after treatment and were alive at the last follow\u2010up. We suggest immune evasion\u2010related extranodal large B\u2010cell lymphoma should be recognized beyond the currently identified entities of IVLBCL and de novo CD5+ DLBCL.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pin.12742","type":"journal-article","created":{"date-parts":[[2019,1,2]],"date-time":"2019-01-02T14:55:33Z","timestamp":1546440933000},"page":"13-20","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Immune evasion\u2010related extranodal large B\u2010cell lymphoma: A report of six patients with neoplastic PD\u2010L1\u2010positive extranodal diffuse large B\u2010cell lymphoma"],"prefix":"10.1111","volume":"69","author":[{"given":"Yuka","family":"Suzuki","sequence":"first","affiliation":[{"name":"Department of Pathology and Laboratory Medicine Nagoya University Hospital Nagoya 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