Incidence and distribution of gene mutations, genomic aberrations, and IGHV status for the patients with all markers available (n = 573). Mutations in TP53, NOTCH1, and SF3B1 are denoted and color coded as NOTCH1^mut, SF3B1^mut, and TP53^mut, respectively; genomic aberrations as 17p deletion (17p−), 11q deletion (11q−), trisomy 12 (+12), and 13q deletion (13q−); and IGHV unmutated as IGHV-U and IGHV mutated as IGHV-M. (A) Cluster diagram of patients (columns) and genetic parameters (rows). Distribution of marker positivity is ordered by rows. White boxes indicate patients without gene mutation, without aberrations (“normal FISH” group), or with mutated IGHV. (B) Circos diagrams of the pairwise cooccurrence of genomic aberrations with mutations for all patients (left), for IGHV subgroups (middle 2 panels), and of the pairwise cooccurrence of IGHV status with mutations (right). The length of the arc corresponds to the frequency of the marker alone plus its pairwise occurrence, whereas the width of the ribbon corresponds to the proportion of cooccurrence with the second marker. (C) Pie charts illustrating the occurrence and cooccurrence of mutations in all patients (left) and in subgroups defined by IGHV status and genomic aberrations (other panels). Mutations in TP53, NOTCH1, SF3B1, and combinations of mutations are indicated by the color code given at the bottom. The patterns of pairwise cooccurrence of gene mutations and genomic aberrations were similar in both IGHV subgroups, whereas the frequencies of mutations were different in subgroups defined by IGHV status and genomic aberrations (B-C).