Distinctive clinical and histological features of Waldenström's macroglobulinemia and splenic marginal zone lymphoma

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We studied 122 patients with Waldenström's macroglobulinemia (WM) and 98 with splenic marginal zone lymphoma (SMZL); 29 SMZL patients (30%) had a serum MC (IgM in 17 patients). SMZL differed from WM for female prevalence, abdominal and superficial adenopathy, spleen and liver involvement, positive HCV. The median MC level was 2.0 g/dL in WM and 0.95 g/dL in SMZL (P <.001). On BM histology, SMZL was characterized by sinusoidal infiltration (70% of cases) and by a more frequent nodular pattern (P <.01) while WM had a higher incidence of interstitial BM localization. After a median follow-up of 5.3 years, median OS was not reached for SMZL and was 12 years for WM (P = .23; 14 years for asymptomatic WM, 8 years for symptomatic WM). In conclusion, despite similar outcomes of these 2 entities, SMZL appears as a disease with distinct clinical features and BM histology and a peculiar association with HCV infection.

Original languageEnglish
Pages (from-to)103-105
Number of pages3
JournalClinical Lymphoma, Myeloma and Leukemia
Issue number1
Publication statusPublished - Feb 1 2011


ASJC Scopus subject areas

  • Cancer Research
  • Hematology
  • Oncology

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