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Splenic marginal zone lymphoma (SMZL) is a type of marginal zone lymphoma, a cancer made up of B-cells that replace the normal architecture of the white pulp of the spleen. The neoplastic cells are both small lymphocytes and larger, transformed lymphoblasts , and they invade the mantle zone of splenic follicles and erode the marginal zone ...
Its prognosis appears to be slightly worse than that seen in extranodal and splenic marginal zone lymphomas [72] with ~15% of people progressing to a more aggressive lymphoma, diffuse large B cell lymphoma, at median time of ~4.5 years after the diagnosis of NMZL. [74]
Marginal zone lymphoma (MZL) is a heterogeneous group of indolent B cell lymphomas that arise from the marginal zone of lymphoid tissues. [17] It accounts for 5–10% of all NHL cases, with an annual incidence of 0.4 to 1.0 per 100,000 in Western countries. [18]
ISMCL is distinguished from reactive germinal center hyperplasia by the presence of mantle zone lymphocytes that express cyclin D1 as well as the other markers described above. Screening studies such as CT scans and bone marrow examinations are recommended to determine if MCL, CLL/SLL, marginal zone lymphoma, or FL is present. [1]
Micrograph showing Hodgkin's lymphoma, a type of B cell lymphoma that is usually considered separate from other B cell lymphomas. Field stain. CT scan of primary B cell lymphoma in the left ilium, as diffuse cortical and trabecular thickening of the hemipelvis, mimicking Paget's disease. [2] There are numerous kinds of lymphomas involving B cells.
Splenic marginal zone lymphoma; Hairy cell leukemia; Plasma cell neoplasms: Plasma cell myeloma (also known as multiple myeloma) Plasmacytoma; Monoclonal immunoglobulin deposition diseases; Heavy chain diseases; Extranodal marginal zone B cell lymphoma, also called MALT lymphoma; About 5% of lymphomas in adults
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These individuals are more likely than those with other types of MBL to have their disorder progress to a malignancy. These malignancies appear to have been primarily marginal zone B-cell lymphomas of the splenic marginal zone B-cell, splenic lymphoma/leukemia unclassifiable, hairy cell leukemia, and possibly Waldenström's macroglobulinemia ...