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Correspondence: John Greer, MD, Vanderbilt, 2665 The Vanderbilt Clinic, Nashville TN 37232-5505; Phone 615-936-1803; Fax 615-936-1812; Email john.greer{at}vanderbilt.edu
Abstract
The mature T/natural killer (NK) lymphoma/leukemias represent 515% of all non-Hodgkin lymphoma. These diseases have a geographic variation, with more nodal disease in North America and Europe, including peripheral T cell lymphomas, unspecified, anaplastic large cell lymphoma, and angioimmunoblastic T cell lymphoma; and more extranodal disease in Asia due to Epstein-Barr virusrelated nasal NK/T lymphoma and human T-cell leukemia virus (HTLV)-1associated adult T cell leukemia/lymphoma. The prognosis in most peripheral T/NK neoplasms is poor, with 5-year survival less than 30%. Progress has been slow due to the rarity of the diseases, geographic variation, relative chemoresistance, and lack of randomized trials. There is no consensus about optimal therapy in T/NK neoplasms, and recommendations are based on anecdotal reports, small series, and phase II trials. In this review, topics include the question of CHOP as standard therapy, prognostic factors, disease-adapted therapy, novel approaches, monoclonal antibody therapy, and stem cell transplantation.
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