AI Article Synopsis

  • * A kidney biopsy showed signs of severe damage, including cast nephropathy and infiltration of B lymphocytes.
  • * After receiving 6 cycles of a combination treatment (R-COP), his kidney function improved significantly, allowing him to stop hemodialysis; this is a rare case of successful treatment for WM-related kidney issues.

Article Abstract

A 60-year-old man with Waldenström's macroglobulinemia (WM) was admitted to our hospital for evaluation of rapid progressive renal deterioration despite 3 cycles of oral melphalan and prednisolone (MP) therapy. Renal biopsy just before introducing hemodialysis revealed cast nephropathy and severe tubulo-interstitial infiltration of B lymphocytes. After 6 cycles of rituximab, cyclophosphamide, vincristine and prednisolone (R-COP) therapy, his renal function improved enough to discontinue hemodialysis. This is a rare case of WM-related renal involvement caused by both monoclonal protein and tumor infiltration and, to our knowledge, the second report on improved renal function by rituximab-based therapy.

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http://dx.doi.org/10.2169/internalmedicine.51.7207DOI Listing

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