Four miRNAs (miR-181a*, miR-181a, miR-146b-5p and miR-203) were validated in all three ALK+ ALCL cell lines but only three of them were found to be differentially expressed in ALK+ ALCL primary cases (miR-181a*, miR-181a, miR-203). The gene discussed is ALK; the disease is anaplastic large cell lymphoma.