The other rare types of lymphomas included extranodal NK/T-cell lymphoma, nasal-type (two cases); angioimmunoblastic T-cell lymphoma (two cases); anaplastic large-cell lymphoma (ALK-negative) (one case); peripheral T-cell lymphoma, not otherwise specified (one case); adult T-cell lymphoma (one case); follicular lymphoma (one case); undefined DLBCL or BL (one case); EBV-associated lymphoproliferative disorder (one case); and undefined disease (one case). This evidence concerns the gene ALK and lymphoproliferative syndrome.