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In this report, we describe the case\u00a0of\u00a0a\u00a0patient with a concomitant diagnosis of multiple myeloma and lymphoplasmacytic lymphoma, presenting with acute kidney injury and with renal biopsy revealing the unexpected concurrent presence of several different renal damages, who achieved a good hematologic response and dialysis independence after anti-myeloma therapy.<\/jats:p>","DOI":"10.3389\/fonc.2025.1672690","type":"journal-article","created":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T04:15:18Z","timestamp":1759810518000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Case Report: Uncommon co-occurrence of different renal histopathological entities in a patient with multiple myeloma and lymphoplasmacytic 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