SOX11-negative Mantle Cell Lymphoma: Clinicopathologic and Prognostic Features of 75 Patients

Studies have suggested that SOX11 expression has prognostic implications in patients with mantle cell lymphoma (MCL), but the data are controversial. In this study, we describe the clinicopathologic and prognostic features of 75 patients with SOX11-negative MCL. Compared with patients with SOX11-positive MCL, SOX11-negative MCL patients more frequently had leukemic non-nodal disease (21% vs. 4%, P=0.0001). SOX11-negative MCLs more often showed classic morphology (83% vs. 65%, P=0.005), were more often positive for CD23 (39% vs. 22%, P=0.02) and CD200 (60% vs. 9%, P=0.0001), and had a lower proliferation index (Ki67 23% vs. 33%, P=0.04). Overall survival (OS) was not significantly different between patients with SOX11-negative versus SOX11-positive MCL (P=0.63). High Ki67 index and blastoid/pleomorphic morphology were associated with shorter OS in both SOX11-negative (P

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