ALK and anaplastic large cell lymphoma: Employing an independent cohort of ALCL patient tumours, we show that miR-155 expression is significantly higher in ALK− (n = 11) as compared to ALCL ALK+ tumours (n = 15, p < 0.001) or normal lymph node and CD3+ T cells, corroborating our previous results (Figure 1A) [28].