| lymphoma, mixed-cell, diffuse | A heterogeneous group of intermediate-grade lymphomas of mixed cellular composition. Although they have not been extensively studied, it appears that they are predominantly B-cell diseases. (12 Dec 1998) |
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| lymphoma, mixed-cell, follicular | A low-grade malignant lymphoma of follicular pattern in which there is no clear preponderance of one cell type (small or large) over another. The large cells, cleaved or noncleaved, are often 2-3 times larger in diameter than normal lymphocytes. (12 Dec 1998) |
| lymphoma, mucosa-associated lymphoid tissue | Extranodal lymphoma of lymphoid tissue associated with mucosa that is in contact with exogenous antigens. Many of the sites of these lymphomas, such as the stomach, salivary gland, and thyroid, are normally devoid of lymphoid tissue. They acquire malt tissue as a result of an immunologically mediated disorder. (12 Dec 1998) |
| lymphoma, non-hodgkin | Any of a group of malignant tumours of lymphoid tissue that differ from hodgkin disease, being more heterogeneous with respect to malignant cell lineage, clinical course, prognosis, and therapy. The only common feature among these tumours is the absence of giant reed-sternberg cells, a characteristic of hodgkin's disease. (12 Dec 1998) |
| lymphoma, small cleaved-cell, diffuse | An intermediate-grade malignant lymphoma in which the neoplastic cells (B-lymphocytes) exhibit variability in size, configuration, and degree of differentiation. The cells have distinctive nuclei, irregular in shape, with marked indentations and angularity. (12 Dec 1998) |
| lymphoma, small cleaved-cell, follicular | A low-grade malignant lymphoma of predominantly follicular pattern. Follicles are of relatively uniform size and shape and the cells are usually somewhat larger than normal lymphocytes. Nuclei are irregular with prominent indentations and cytoplasm can rarely be identified. Cells exhibiting these characteristics are often called centrocytes. (12 Dec 1998) |
| lymphoma, small lymphocytic | A low-grade malignant lymphoma that may, in some cases, be considered histologically identical to chronic lymphocytic leukaemia (cll; leukaemia, lymphocytic, chronic). It is diffuse in pattern, representing the neoplastic proliferation of well-differentiated B-lymphocytes. In patients with immunoglobulin gammopathies, the lymphocytes may exhibit plasmacytoid characteristics. (12 Dec 1998) |
| lymphoma, small noncleaved-cell | A high-grade malignant lymphoma that includes both burkitt tumour (burkitt lymphoma) and other lymphomas previously designated undifferentiated non-burkitt type. Nuclei in burkitt tumour are round to ovoid and uniform in size. The non-burkitt type exhibits greater nuclear variation and less evidence of cellular maturation with a correspondingly lesser degree of differentiation. (12 Dec 1998) |
| lymphoma, small-cell | A B-cell lymphoma presumably representing a tumour of interfollicular B-lymphocytes that may be functional. Those that are secrete identical immunoglobulin molecules. (12 Dec 1998) |
| lymphoma, T-cell | A group of heterogeneous lymphoid tumours representing malignant transformations of T-lymphocytes. (12 Dec 1998) |
| lymphoma, T-cell, cutaneous | A group of lymphomas exhibiting clonal expansion of malignant T-lymphocytes arrested at varying stages of differentiation as well as malignant infiltration of the skin. Mycosis fungoides and sezary syndrome are the best characterised of these disorders. (12 Dec 1998) |
| lymphoma, T-cell, peripheral | A group of malignant lymphomas thought to derive from peripheral T-lymphocytes in lymph nodes and other nonlymphoid sites. They include a broad spectrum of lymphocyte morphology, but in all instances express T-cell markers admixed with epithelioid histiocytes, plasma cells, and eosinophils. Although markedly similar to large-cell immunoblastic lymphoma (lymphoma, large-cell, immunoblastic), this group's unique features warrant separate treatment. (12 Dec 1998) |
| lymphoma, undifferentiated | A form of lymphoma in which relatively large stem cells with large nuclei, pale, scanty cytoplasm, and indistinct borders are predominant. The cells are undifferentiated, i.e., show no morphologic evidence of maturation toward lymphocytes or histiocytes. (12 Dec 1998) |
| lymphomatoid | Resembling a lymphoma. (05 Mar 2000) |
| lymphomatoid granulomatosis | An angiocentric and angiodestructive lymphoreticular proliferative disorder primarily involving the lungs. Histologically it simulates malignant lymphoma and in some cases may progress to lymphoma. (12 Dec 1998) |
Synonyms : Lymphoma, T Cell, Lymphomas, T-Cell, T Cell Lymphoma, T-Cell Lymphomas
Synonyms : Cutaneous T-Cell Lymphoma, Lymphoma, T Cell, Cutaneous, Cutaneous T Cell Lymphoma, Cutaneous T-Cell Lymphomas, Lymphoma, Cutaneous T-Cell, Lymphomas, Cutaneous T-Cell, Slack Skin, Granulomatous, T Cell Lymphoma, Cutaneous, T-Cell Lymphomas, Cutaneous
Synonyms : Lymphoma, T Cell, Peripheral, Lymphoma, Peripheral T-Cell, Lymphomas, Peripheral T-Cell, Peripheral T Cell Lymphoma, Peripheral T-Cell Lymphomas, T Cell Lymphoma, Peripheral, T-Cell Lymphomas, Peripheral
Synonyms : Undifferentiated Lymphoma, Lymphomas, Pleomorphic, Lymphomas, Undifferentiated, Pleomorphic Lymphoma, Pleomorphic Lymphomas, Undifferentiated Lymphomas
Synonyms : Granulomatoses, Lymphomatoid, Lymphomatoid Granulomatoses
| lymph node |
Also known as a lymph gland, a lymph node is a small organ lying along the course of a lymphatic vessel.
출처: www.ehealthmd.com/library/stomachcancer/STC_glossa...
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| lymphoid tissue |
Part of the body's immune system that helps protect it from germs.
출처: www.ehealthmd.com/library/tonsillitis/TON_glossary...
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| lymph node |
A small organ that is a component of the lymphatic system and consists of lymphocytes, macrophages, and dendritic cells. The lymph nodes filter lymph from peripheral nodes, and ultimately empty into the thoracic duct.
출처: www.genpromag.com/Glossary~LETTER~L.html
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| lymphokine |
A factor released by lymphocytes that modulates other cell types.
출처: www.genpromag.com/Glossary~LETTER~L.html
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| lymphoma |
A malignant tissue neoplasm that produces a tumor mass, often associated with lymphoid tissue.
출처: www.genpromag.com/Glossary~LETTER~L.html
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