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Clinicopathologic Characterization of Diffuse-Large-B-Cell Lymphoma with an Associated Serum Monoclonal IgM Component

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  • M Christina Cox
  • Arianna Di Napoli
  • Stefania Scarpino
  • Gerardo Salerno
  • Caterina Tatarelli
  • Caterina Talerico
  • Mariangela Lombardi
  • Bruno Monarca
  • Sergio Amadori
  • Luigi Ruco

Abstract

Recently, diffuse-large-B-cell lymphoma (DLBCL) associated with serum IgM monoclonal component (MC) has been shown to be a very poor prognostic subset although, detailed pathological and molecular data are still lacking. In the present study, the clinicopathological features and survival of IgM-secreting DLBCL were analyzed and compared to non-secreting cases in a series of 151 conventional DLBCL treated with R-CHOP. IgM MC was detected in 19 (12.5%) out of 151 patients at disease onset. In 17 of these cases secretion was likely due to the neoplastic clone, as suggested by the expression of heavy chain IgM protein in the cytoplasm of tumor cells. In IgM-secreting cases immunoblastic features (p

Suggested Citation

  • M Christina Cox & Arianna Di Napoli & Stefania Scarpino & Gerardo Salerno & Caterina Tatarelli & Caterina Talerico & Mariangela Lombardi & Bruno Monarca & Sergio Amadori & Luigi Ruco, 2014. "Clinicopathologic Characterization of Diffuse-Large-B-Cell Lymphoma with an Associated Serum Monoclonal IgM Component," PLOS ONE, Public Library of Science, vol. 9(4), pages 1-10, April.
    • Handle: RePEc:plo:pone00:0093903
    DOI: 10.1371/journal.pone.0093903
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