Figure 1

Representative result of fluorescence in situ hybridization analysis. IgH and MALT1 gene fusion pattern with the LSI IGH/MALT1 Dual Color, Dual Fusion Translocation Probe (Vysis, Downers Grove, IL, USA). One orange MALT1 signal (shown with the white arrowhead), one green IgH signal (shown with the black arrowhead), and two fusion IgH/MALT1 signals are present (shown with the yellow arrowhead).