Distinctive Clinical and Histological Features of Waldenstrom's Macroglobulinemia and Splenic Marginal Zone Lymphoma

作者：Arcaini Luca^*; Varettoni Marzia; Boveri Emanuela; Orlandi Ester; Rattotti Sara; Zibellini Silvia; Merli Michele; Lucioni Marco; Rizzi Silvia; Gotti Manuel; Morello Lucia; Pascutto Cristiana; Paulli Marco

来源：Clinical Lymphoma Myeloma & Leukemia, 2011, 11(1): 103-105.

DOI：10.3816/CLML.2011.n.020

We studied 122 patients with Waldenstrom'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.

• 出版日期2011-2