lymphoplasmacytic lymphoma

(redirected from immunocytoma)

lymphoplasmacytic lymphoma

lymphoplasmacytic lymphoma/Waldenstrm macroglobulinemia is characterized by the presence of a diffuse proliferation of small mature B lymphocytes, plasmacytoid lymphocytes, and plasma cells; the cells show surface Ig (usually IgM), B-cell-associated antigens, and are CD23 and CD10 negative. The t(9;14) chromosomal translocation has been found in 50% of all lymphoplasmacytic lymphoma cases. Clinical course is usually indolent, but may be associated with hyperviscosity syndrome due to excess IgM in the blood.
See also: Waldenström macroglobulinemia.
Synonym(s): immunocytoma
References in periodicals archive ?
Serum beta(2)-microglobulin and serum thymidine kinase are independent predictors of progression-free survival in chronic lymphocytic leukemia and immunocytoma.
Lymphoplasmacytic/ lympho plasmacytoid immunocytoma with a high content of epithelioid cells: histologic and immunohistochemical findings.
European phase-II study of rituximab (chimeric CD20 monoclonal antibody) for patients with newly diagnosed mantle-cell lymphoma and previously treated mantle-cell lymphoma, immunocytoma, and small B-cell lymphocytic lymphoma.
Patient Disease Cryocrit, % 1 Lymphoplasmacytoid immunocytoma 7 2 Waldenstr6m macroglobulinemia 15 (immunocytoma) 3 Centroblastic lymphoma 4 4 Waldenstrom macroglobulinemia 40 (immunocytoma) (Gelatinous appearance) CD4000 CD4000 optical impedance Patient count count 1 355 356 2 619 578 3 94 66 4 476 572 CD4000 Technicon H*3 immunoplatelet platelet Patient (CD61) count count 1 42 445 2 226 819 3 21 23 4 329 422 Hemacytometer (chamber) Patient count 1 38 2 289 3 22 4 318
Pulmonary immunocytoma with massive crystal storing histiocytosis: a case report with review of literature.
The differential diagnoses of a lymphoplasmacytic or lymphoplasmacytoid infiltration in the bone marrow include at least 3 neoplastic conditions: lymphoplasmacytic lymphoma (LPL) (also called immunocytoma or Waldenstrom macroglobulinemia), marginal zone lymphoma (MZL) with plasmacytic differentiation, and CLL with plasmacytic differentiation.
Lymphoplasmacytic/lymphoplasmacytoid immunocytoma with a high content of epithelioid cells: histologic and immunohistochemical findings.
The term immunocytoma from the Kiel classification has been mainly used in the European literature and is synonymous with small lymphocytic-plasmacytoid lymphoma in the Working Formulation and with lymphoplasmacytoid lymphoma in the revised European-American Lymphoma (REAL) classification.
12] In 1981, Lennert[1] published a study based on a total of 181 biopsies of extranodal immunocytoma and reported the following distribution: skin, 22%; eye, 21%; gastrointestinal tract, 20%; and other sites, 37%.
Immunocytoma (polymorphous subtype IgA/lambda) of the lung.
Pulmonary immunocytoma with massive crystal-storing histiocytosis: a case report with review of the literature.

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