What is Prolymphocytic leukemia?
T-cell prolymphocytic leukemia (T-PLL) is an extremely rare and typically aggressive malignancy (cancer) that is characterized by the out of control growth of mature T-cells (T-lymphocytes). T-cells are a type of white blood cell that protects the body from infections.
What is B cell type leukemia?
B-cell acute lymphoblastic leukemia is a cancer that affects your “B lymphocytes” — white blood cells that grow in the soft center of your bones, called marrow. B lymphocytes are supposed to grow into cells that help you fight infections.
What causes monoclonal B cell lymphocytosis?
Individuals with MBL usually present with unexplained increases in blood lymphocyte counts (i.e. lymphocytosis). The most common causes for lymphocytosis are viral infections, autoimmune diseases (particularly connective tissue diseases), hypersensitivity reactions, acute stress reactions, and prior splenectomy.
What is Richters syndrome?
Richter’s Syndrome (RS), also known as Richter’s Transformation, is a rare complication of Chronic Lymphocytic Leukaemia (CLL) and/or Small Lymphocytic Lymphoma (SLL). It is characterised by the sudden transformation of the CLL/SLL into a significantly more aggressive form of large cell lymphoma.
What is Myeloblast?
(MY-eh-loh-blast) A type of immature white blood cell that forms in the bone marrow. Myeloblasts become mature white blood cells called granulocytes (neutrophils, basophils, and eosinophils).
Is Prolymphocytic leukemia curable?
B-PLL is an extremely rare disease, and there is no consensus on treatment strategy. Currently B-PLL is not considered curable with standard treatments with the possible exception of a hematopoietic stem cell transplantation available only to a small number of younger and/or fitter patients.
What are B symptoms leukemia?
The term “B symptoms” is used to refer to fever, drenching night sweats and loss of more than 10 percent of body weight over 6 months. B symptoms are significant to the prognosis and staging of the disease.
What is B cell?
sel) A type of white blood cell that makes antibodies. B cells are part of the immune system and develop from stem cells in the bone marrow. Also called B lymphocyte.
Which are characteristics of monoclonal B-cell lymphocytosis?
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.
What does lymphocytosis indicate?
In many cases, lymphocytosis simply means your body has been fighting a viral infection. In some cases, lymphocytosis is one of the first signs of certain blood cancers, including chronic lymphocytic leukemia (CLL), which is the most common type of leukemia seen in adults.
What is Richters lymphoma?
Richter syndrome (RS) is defined as the transformation of chronic lymphocytic leukemia (CLL) into an aggressive lymphoma, most commonly diffuse large B-cell lymphoma (DLBCL). RS occurs in approximately 2% to 10% of CLL patients during the course of their disease, with a transformation rate of 0.5% to 1% per year.
What are smudge cells associated with?
Smudge cells, also called basket cells, are most often associated with abnormally fragile lymphocytes in disorders such as chronic lymphocytic leukemia (CLL). However, they can also be seen in degenerating samples; in which case, their origin may not be lymphocytic.
