The aggressive peripheral T-cell lymphomas: 2012 update on diagnosis, risk stratification, and management

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Abstract

Background: T-cell lymphomas make up approximately 10-15% of lymphoid malignancies. The frequency of these lymphomas varies geographically, with the highest incidence in parts of Asia. Diagnosis: The diagnosis of aggressive peripheral T-cell lymphoma (PTCL) is usually made using the WHO classification. The ability of hematopathologists to reproducibly diagnose aggressive PTCL is lower than for aggressive B-cell lymphomas, with a range of 72-97% for the aggressive PTCLs. Risk Stratification: Patients with aggressive PTCL are staged using the Ann Arbor Classification. Although somewhat controversial, positron emission tomography (PET) scans appear to be useful as they are in aggressive B-cell lymphomas. The most commonly used prognostic index is the International Prognostic Index. The specific subtype of aggressive PTCL is an important risk factor, with the best survival seen in anaplastic large-cell lymphoma-particularly young patients with the anaplastic lymphoma kinase positive subtype. Risk Adapted Therapy: Anaplastic large-cell lymphoma is the only subgroup to have a good response to a cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP)-like regimen. Angioimmunoblastic T-cell lymphoma has a prolonged disease-free survival in only ∼20% of patients, but younger patients who have an autotransplant in remission seem to do better. PTCL-not otherwise specified (NOS) is not one disease. Anthracycline containing regimens have disappointing results and a new approach is needed. NK/T-cell lymphoma localized to the nose and nasal sinuses seems to be best treated with radiotherapy containing regimens. Enteropathy associated PTCL and hepatosplenic PTCL are rare disorders with a generally poor response to therapy, although selected patients with enteropathy associated PTCL seem to benefit from intensive therapy.

Original languageEnglish (US)
Pages (from-to)512-519
Number of pages8
JournalAmerican Journal of Hematology
Volume87
Issue number5
DOIs
StatePublished - May 1 2012

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Peripheral T-Cell Lymphoma
Risk Management
T-Cell Lymphoma
Enteropathy-Associated T-Cell Lymphoma
Anaplastic Large-Cell Lymphoma
B-Cell Lymphoma
Paranasal Sinuses
Anthracyclines
Autografts
Vincristine
Prednisone
Nose
Natural Killer Cells
Positron-Emission Tomography
Doxorubicin
Cyclophosphamide
Disease-Free Survival
Lymphoma
Radiotherapy
Therapeutics

ASJC Scopus subject areas

  • Hematology

Cite this

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abstract = "Background: T-cell lymphomas make up approximately 10-15{\%} of lymphoid malignancies. The frequency of these lymphomas varies geographically, with the highest incidence in parts of Asia. Diagnosis: The diagnosis of aggressive peripheral T-cell lymphoma (PTCL) is usually made using the WHO classification. The ability of hematopathologists to reproducibly diagnose aggressive PTCL is lower than for aggressive B-cell lymphomas, with a range of 72-97{\%} for the aggressive PTCLs. Risk Stratification: Patients with aggressive PTCL are staged using the Ann Arbor Classification. Although somewhat controversial, positron emission tomography (PET) scans appear to be useful as they are in aggressive B-cell lymphomas. The most commonly used prognostic index is the International Prognostic Index. The specific subtype of aggressive PTCL is an important risk factor, with the best survival seen in anaplastic large-cell lymphoma-particularly young patients with the anaplastic lymphoma kinase positive subtype. Risk Adapted Therapy: Anaplastic large-cell lymphoma is the only subgroup to have a good response to a cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP)-like regimen. Angioimmunoblastic T-cell lymphoma has a prolonged disease-free survival in only ∼20{\%} of patients, but younger patients who have an autotransplant in remission seem to do better. PTCL-not otherwise specified (NOS) is not one disease. Anthracycline containing regimens have disappointing results and a new approach is needed. NK/T-cell lymphoma localized to the nose and nasal sinuses seems to be best treated with radiotherapy containing regimens. Enteropathy associated PTCL and hepatosplenic PTCL are rare disorders with a generally poor response to therapy, although selected patients with enteropathy associated PTCL seem to benefit from intensive therapy.",
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