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B-cell prolymphocytic leukemia, referred to as B-PLL, is a rare blood cancer.It is a more aggressive, but still treatable, form of leukemia.. Specifically, B-PLL is a prolymphocytic leukemia (PLL) that affects prolymphocytes – immature forms of B-lymphocytes and T-lymphocytes – in the peripheral blood, bone marrow, and spleen.
Prolymphocytic leukemia is divided into two types according to the kind of cell involved: B-cell prolymphocytic leukemia and T-cell prolymphocytic leukemia. It is usually classified as a kind of chronic lymphocytic leukemia .
B cell prolymphocytic leukemia, a related, but more aggressive disorder, has cells with similar phenotype, but are significantly larger than normal lymphocytes and have a prominent nucleolus. The distinction is important as the prognosis and therapy differ from CLL.
A B-cell leukemia is any of several types of lymphoid leukemia which affect B cells. [1] Types include (with ICD-O code): [citation needed] 9823/3 - B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma; 9826/3 - Acute lymphoblastic leukemia, mature B-cell type; 9833/3 - B-cell prolymphocytic leukemia; 9835/3-9836/3 - Precursor B ...
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 ...
The most common T-cell leukemia is precursor T-cell lymphoblastic leukemia. [1] It causes 15% of acute leukemias in childhood, and also 40% of lymphomas in childhood. [1] It is most common in adolescent males. [1] Its morphology is identical to that of precursor B-cell lymphoblastic leukemia. [1] Cell markers include TdT, CD2, CD7. [1]
The T cell variations are usually caused by the prolonged use of T cell suppressant drugs, such as sirolimus, tacrolimus, or ciclosporin. [2] The Epstein-Barr virus , which infects >90% of the world population, is also a common cause of these disorders, being responsible for a wide range of non-malignant, pre-malignant, and malignant Epstein ...
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. MBL-MZ requires further studies to evaluate its frequencies, rate of progression to malignancy, and treatment.
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