However, cases with mutated XPO1 for which we had cytogenetic data were more commonly associated with del(13q14) than were wt XPO1 samples with unmutated IgHV (74% vs 45%; p = 0.003) or LP-CLL (69% vs 42%; p = 0.004). The gene discussed is XPO1; the disease is B-cell chronic lymphocytic leukemia.