ALK and mature T-cell and NK-cell non-Hodgkin lymphoma: The most common NHL subtypes were diffuse large B-cell lymphoma (DLBCL) (n=16, 38.1%) and T-lymphoblastic lymphoma (T-LBL) (n=13, 31.0%), followed by peripheral T-cell lymphoma (PTCL) (n=5, 11.9%), Burkitt lymphoma (n=2, 4.8%), B-cell NHL unspecified (n=2, 4.8%), and systemic ALK-positive anaplastic large cell lymphoma in 1 case (2.4%).