In line, BATF3 and IL-2Rα expression positively correlated (P = 0.0017) by immunohistochemistry (IHC) of ALCL specimens using a tissue microarray (TMA) (n = 63; Fig. 1g, Supplementary Fig. 2f and Supplementary Tables 3 and 4). Here, BATF3 is linked to anaplastic large cell lymphoma.