ALK and anaplastic large cell lymphoma: Compared with RH (0.224 ± 0.101), the expression level of TCLlnc1 was significantly increased in the main subtypes of PTCL (ALK+ALCL, 0.292 ± 0.077, P = 0.0272, ALK−ALCL, 2.075 ± 0.682, P = 0.0005, AITL, 0.982 ± 0.379, P = 0.0005, and PTCL-NOS, 1.386 ± 0.365, P = 0.0002, Fig. 2A).