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Concept
T-cell lymphoma
Résumé
T-cell lymphoma is a rare form of cancerous lymphoma affecting T-cells. Lymphoma arises mainly from the uncontrolled proliferation of T-cells and can become cancerous.
T-cell lymphoma is categorized under Non-Hodgkin lymphoma (NHL) and represents less than 15% of all Non-Hodgkin's diseases in the category. T-cell lymphomas are often categorised based on their growth patterns as either; aggressive (fast-growing) or indolent (slow-growing). Although the cause of T-cell lymphoma is not definitive, it has been associated with various risk factors and viruses such as Epstein–Barr virus (EBV) and Human T-cell leukemia virus-1 (HTLV1).
The prognosis and treatment of T-cell lymphoma can vary drastically based on the specific type of lymphoma and its growth patterns. Due to their rarity and high variability between the different subtypes, the prognosis of T-cell lymphoma is significantly worse than other Non-Hodgkin lymphoma. The treatment of T-cell lymphoma is often similar to other Non-Hodgkin lymphomas with early-stage treatments consisting of chemotherapy and/or radiology. The effectiveness of these treatments is often varied between subtypes with most receiving a poor outcome with high relapse rates.
There are many types and variations of T-cell lymphoma, each with vastly different symptoms, survival, and prognosis. The classification of T-cell lymphoma has been difficult to accomplish due to the lack of understanding of their biology. Most classifications are basic with many still under the title of ‘provisional categories’ in the World Health Organization Classification of disease.
Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS): Most common type of Peripheral T-cell lymphoma (PTCL), comprising subtypes which cannot be classified as either nodal, extra-nodal, or leukemic
Angioimmunoblastic T-cell lymphoma (AITL): Aggressive form of T-cell lymphoma.
Anaplastic large cell lymphoma (ALCL): ALCL has four distinct types:
ALK-positive anaplastic large cell lymphoma: an aggressive, systemic ALCL that strongly expresses anaplastic lymphoma kinase, i.
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Concepts associés (5)
B-cell lymphoma
The B-cell lymphomas are types of lymphoma affecting B cells. Lymphomas are "blood cancers" in the lymph nodes. They develop more frequently in older adults and in immunocompromised individuals. B-cell lymphomas include both Hodgkin's lymphomas and most non-Hodgkin lymphomas. They are typically divided into low and high grade, typically corresponding to indolent (slow-growing) lymphomas and aggressive lymphomas, respectively. As a generalisation, indolent lymphomas respond to treatment and are kept under control (in remission) with long-term survival of many years, but are not cured.
Syndrome lymphoprolifératif
Le syndrome lymphoprolifératif est une prolifération de cellules d'origine lymphoïde. Ce syndrome survient chez des patients ayant des troubles du système immunitaire. Ils sont parfois désignés sous le terme de « désordre immunoprolifératif », mais le syndrome lymphoprolifératif est une composante des désordres immunoprolifératifs, comme les hypergammaglobulinémies sont une composante des paraprotéinémie.
Lymphome de Hodgkin
Le 'lymphome de Hodgkin' (LH) ou lymphome hodgkinien (par opposition au lymphome non hodgkinien) est un type de lymphome (cancer du système lymphatique) caractérisé par la présence de grandes cellules atypiques, les cellules de Reed-Sternberg. Le fait qu'il s'agisse du premier lymphome bien caractérisé a conduit à appeler lymphomes non hodgkiniens (LNH), par exclusion, tous les autres types de lymphome.
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