Molecularly, MCL is characterized by the t(11;14)(q13;q32) translocation, which juxtaposes the cyclin D1 (CCND1) gene (also called B-cell lymphoma-1 (Bcl-1) gene) and the gene encoding the immunoglobulin heavy chain, leading to cyclin D1 overexpression [7,8,9,16,17]. Here, CCND1 is linked to mantle cell lymphoma.