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To address this issue, we compared the histological features of eight matched AcS and main spleen (MS) samples, obtained from adult patients with primary ITP. AcS and MS had overlapping immune architectural features and lymphoid composition, suggesting that similar immunologic events occur in AcS and MS of ITP. These findings may have implications for the potential mechanisms of AcS\u2010mediated ITP relapse. Further studies are needed to confirm these results and to dissect spleen immunity in ITP.<\/jats:p>","DOI":"10.1111\/bjh.18749","type":"journal-article","created":{"date-parts":[[2023,3,14]],"date-time":"2023-03-14T11:59:54Z","timestamp":1678795194000},"page":"147-152","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Accessory spleens recapitulate the immune microenvironment of the main spleen in immune thrombocytopenia"],"prefix":"10.1111","volume":"202","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4006-7317","authenticated-orcid":false,"given":"Marco","family":"Pizzi","sequence":"first","affiliation":[{"name":"Surgical Pathology and Cytopathology Unit, Department of Medicine\u2010DIMED University of Padua School of Medicine  Padua 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