Positivity for CD10 and/or BCL6 has been reported in approximately 16% of cyclin D1 + , SOX11 + MCL and is associated with higher proliferation, blastoid morphology, and 3q27 amplifications, while translocations involving BCL6 are very rare in MCL [63] (Fig. 8). Here, BCL6 is linked to mantle cell lymphoma.