In concordance with the original tumor and the LM1 cell line, the LM1 xenograft revealed the presence of plasmoblastic DLBCL with expression of fine granular cytoplasmic ALK-staining, expression of the immunoglobulin kappa light chain, CD138 and negativity for CD30 (Figure 1), indicating that the cellular features were maintained in the xenografted tumor. Here, ALK is linked to diffuse large B-cell lymphoma.