ZCCHC18 and B-cell chronic lymphocytic leukemia: Expression of five of these 13 genes that were significantly upregulated in non-VH11 CLL vs. VH11 CLL (Ccdc88a, Clip3, Zcchc18, Chd3, Itm2a) was also evaluated in five mutated IgH.TEμ CLL, defined by < 97% IghV germline identity [Supplementary Table 1 and ter Brugge et al. (22)].