Mutational landscape of nodal TFH-derived lymphomas. The results of targeted deep sequencing of 69 genes in 72 AITL (light gray) and 13 TFH-like PTCL (dark gray) are presented. Ten cases (8 AITL and 2 TFH-like PTCL) with no mutations detected are not represented. TET2, DNMT3A, and IDH2 mutations available for a subset of the cases reported in previous studies^8,9  are also shown. Case-mutation pairs for which data are not available are indicated by a 0. Mutated genes (rows) are arranged by decreasing order of mutation frequency. Patients (columns) are arranged from left to right based on their mutational status following gene ranking.