CDKN2A and mantle cell lymphoma: Nevertheless, MCL is also characterized by secondary genomic events such as copy number variations (CNVs), for instance, deletions (Del) at 17p, 13q33-q34, 1p22, 11q22-q23, 6q, 13q14 (RB1), 9p21 (CDKN2A/B), 9q22q31, and 10p15-p13, and amplifications (Amp) at 3q25-q29, 18q21-q22 (BCL2), and 12q13 (CDK4) [20].