نتایج جستجو برای: cell lymphocytosis
تعداد نتایج: 1685334 فیلتر نتایج به سال:
Pure red cell aplasia (PRCA) has been associated with a variety of clinical disorders, and various autoimmune mechanisms have been described to account for the red cell suppression. Primary PRCA occurs via both humoral and cell mediated mechanisms. Recent evidence using gene rearrangement studies indicates PRCA with T-lymphocytosis is a clonal chronic T cell lymphoproliferative disorder in whic...
BACKGROUND Monoclonal B-cell lymphocytosis (MBL) is an asymptomatic precursor condition for chronic lymphocytic leukemia (CLL). It is defined by the presence of small clones of aberrant B cells in the peripheral blood, with a total B-cell count below the threshold for diagnosis of CLL (<5.0x10(9) cells/L). METHODS The authors review current literature on the prevalence of MBL, and the clinica...
A 50-year-old female with low-grade chronic anemia and no other medical problems was evaluated when her hemoglobin fell to 8.2 g/dL. She had no adenopathy or hepatosplenomegaly. Her white cell count was 7.7 109/L with a lymphocyte count of 6.2 109/L, platelets 498 109/L, and reticulocyte count that was normal. Serum electrophoresis and rheumatoid factor were negative and ANA was weakly positive...
The Bruton's tyrosine kinase (BTK) inhibitor ibrutinib has outstanding activity in patients with chronic lymphocytic leukemia. Most patients experience lymphocytosis, representing lymphocyte egress from nodal compartments. This resolves within 8 months in the majority of patients, but a subgroup has lymphocytosis lasting >12 months. Here we report a detailed characterization of patients with pe...
The differential diagnosis of absolute lymphocytosis is variegated. In general, reactive (secondary) lymphocytosis can be well differentiated from a lymphoproliferative disease (primary lymphocytosis). Together with correspondent clinical characteristics, an absolute lymphocytosis often suggests a potential diagnosis and the further diagnostic process. Reactive lymphocytosis is usually self lim...
Monoclonal B-cell lymphocytosis (MBL) is a premalignant condition characterized by the presence of less than 5000/μL circulating clonal B cells in otherwise healthy individuals. Three subcategories have been identified according to the immunophenotypic features: CLL-like, CD5(+) atypical, and CD5(-) MBL. CLL-like MBL is by far the most frequent and best studied category and further divided in l...
Cutaneous T-cell dyscrasia represents a heterogeneous group of persistent clonal and usually epitheliotropic T-cell infiltrates with a seemingly low risk for progression to mycosis fungoides (MF). Mucin-poor folliculotropic T-cell lymphocytosis is the least well characterized with only a few anecdotal case reports. Cases of folliculotropic lymphocytosis were retrieved via a natural language sea...
Very low levels of circulating monoclonal B-cell subpopulations can now be detected in apparently healthy individuals using flow cytometry. We propose the term 'monoclonal B-cell lymphocytosis' (MBL) to describe this finding. The aim of this document is to provide a working definition of MBL for future clinical, epidemiological and laboratory studies. We propose that the detection of a monoclon...
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