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Conventionally, a leukocytosis exceeding 50,000 WBC/mm 3 with a significant increase in early neutrophil precursors is referred to as a leukemoid reaction. [2] The peripheral blood smear may show myelocytes, metamyelocytes, promyelocytes, and rarely myeloblasts; however, there is a mixture of early mature neutrophil precursors, in contrast to the immature forms typically seen in acute leukemia.
Azacitidine is a chemical analogue of the nucleoside cytidine, which is present in DNA and RNA.It is thought to have antineoplastic activity via two mechanisms – at low doses, by inhibiting of DNA methyltransferase, causing hypomethylation of DNA, [16] and at high doses, by its direct cytotoxicity to abnormal hematopoietic cells in the bone marrow through its incorporation into DNA and RNA ...
Leukostasis, also known as symptomatic hyperleukocytosis, is a life-threatening complication of various leukemias characterized by an excess of white blood cells in the bloodstream. Hyperleukocytosis is arbitrarily defined as greater than 100,000 white blood cells per microliter of blood.
An example of such adjuvant therapy is the additional treatment [1] usually given after surgery where all detectable disease has been removed, but where there remains a statistical risk of relapse due to the presence of undetected disease. If known disease is left behind following surgery, then further treatment is not technically adjuvant.
Treatment is recommended when patients become symptomatic or experience one of the following: Dangerous drops in their red blood cell or platelet count; A doubling of their white blood cells in 6 months or less; Significant splenomegaly; Severe swelling of the lymph nodes, and/or; Richter transformation [16]
EPOCH is an intensive chemotherapy regimen intended for treatment of aggressive non-Hodgkin's lymphoma. [1] [2] It is often combined with rituximab. In this case it is called R-EPOCH or EPOCH-R. The R-EPOCH regimen consists of: Rituximab: an anti-CD20 monoclonal antibody, which has the ability to kill B cells, be they normal or malignant;
Peripheral blood stem cells [38] are now the most common source of stem cells for HSCT. They are collected from the blood through a process known as apheresis. The donor's blood is withdrawn through a sterile needle in one arm and passed through a machine that removes white blood cells. The red blood cells are returned to the donor.
Neoadjuvant chemotherapy is given prior to a local treatment such as surgery, and is designed to shrink the primary tumor. [6]: 55–59 It is also given for cancers with a high risk of micrometastatic disease. [8]: 42 Adjuvant chemotherapy is given after a local treatment (radiotherapy or surgery). It can be used when there is little evidence ...