TP53 and anaplastic large cell lymphoma: TP53 mutations occurred mainly in ALK- ALCL patients (n = 3, 50%), followed by PCTL-NOS patients (n = 3, 30%), ALK + ALCL patients (n = 1, 25%), and AITL patients (n = 1, 3%), comprising four missense mutations, one nonsense mutation, one frameshift, one splice and one CDS-Indel (Additional file 3: Fig. S1d).