lymphoma

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lymphoma,

a cancer of the tissue of the lymphatic systemlymphatic system
, network of vessels carrying lymph, or tissue-cleansing fluid, from the tissues into the veins of the circulatory system. The lymphatic system functions along with the circulatory system in absorbing nutrients from the small intestines.
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. There are two categories of lymphomas. One type is termed Hodgkin's diseaseHodgkin's disease,
a type of cancer of the lymphatic system. First identified in 1832 in England by Thomas Hodgkin, it is a type of malignant lymphoma. Incidence peaks in young adults and the elderly.
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, the other, non-Hodgkin's lymphoma (see lymphoma, non-Hodgkin'slymphoma, non-Hodgkin's,
any cancer of the lymphoid tissue (see lymphatic system) in which the Reed-Sternberg cells characteristic of Hodgkin's disease (the other category of lymphoma) are not present.
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). See also neoplasmneoplasm
or tumor,
tissue composed of cells that grow in an abnormal way. Normal tissue is growth-limited, i.e., cell reproduction is equal to cell death. Feedback controls limit cell division after a certain number of cells have developed, allowing for tissue repair
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.
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lymphoma

[lim′fō·mə]
(medicine)
Any neoplasm, usually malignant, of the lymphoid tissues.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Recently, CD68 was described as a possible discriminatory marker in distinguishing primary cutaneous acral [CD8.sup.+] T-cell lymphoma from aggressive T-cell lymphomas with a cytotoxic [CD8.sup.+] phenotype.
We presently report on a T-cell lymphoma, most consistent with angioimmunoblastic T-cell lymphoma (AITL) [6, 7], occurring in an 80-year-old woman's inguinal lymph node.
Peripheral T-cell lymphomas with RS-like cells represent one of the most challenging differential diagnosis of classical Hodgkin lymphomas because of the characteristic mixed inflammatory background seen in both entities.
Peripheral T-cell lymphomas other than HSTL may also involve the spleen and liver, as well as the bone marrow and peripheral blood; however, most are associated with lymphadenopathy.
Primary cutaneous follicular helper T-cell lymphoma: a new subtype of cutaneous T-cell lymphoma reported in a series of 5 cases.
Real-world data on prognostic factors and treatment in peripheral T-cell lymphomas: A study from the Swedish lymphoma registry.
Enteropathy associated T-cell lymphoma: Clinical and histological findings from the International Periferal T-Cell Lymphoma Project.
Weisenburger, and International T-Cell Lymphoma Project., "International peripheral T-cell and natural killer/T-cell lymphoma study: pathology findings and clinical outcomes," Journal of Clinical Oncology, vol.
"T-cell lymphomas are particularly difficult to treat without damaging essential, healthy T-cells that are vital to the immune system.
Peripheral T-cell lymphoma with Reed-Sternberg-like cells of B-cell phenotype and genotype associated with Epstein-Barr virus infection.
Bacchi, "Primary and secondary T-cell lymphomas of the breast: clinico-pathologic features of 11 cases," Applied Immunohistochemistry and Molecular Morphology, vol.
Peripheral T-cell lymphomas tend to develop in 55- to 60-year-old men of East Asian ancestry.