CCND2 and B-cell prolymphocytic leukemia: also described multiple genes associated with B-cell pre lymphocytic leukemia (B-PLL) in their article “Epigenic features support the diagnosis of B-cell prolymphatic leukemia and identify 2 clinicobiological subtypes”, mainly including MYC, SF3B1, TP53, CCND1, CCND2, and CCND3.