In MCL cell lines (n = 8), SOX11 was mostly unmethylated (median/IQR = 0.14/0.17) whereas all non-MCL cell lines including T-ALL (n = 1), DLBCL (n = 3), BL (n = 1) and Hodgkin lymphoma (n = 4) were strongly methylated (median/IQR = 0.91/0.03). The gene discussed is SOX11; the disease is mantle cell lymphoma.