<unk>  is a reversible increase in production of white blood cells in response to a stimulus, with white blood cell count of more than 25,000-30,000 per mm3 . Leukocytosis is increase in white blood cell count of more than 10,000 per mm3 and when the count exceeds 25,000 per mm3, with more than 2% immature white blood cells but absence of any blast cells, differentiating it from leukemias.<unk>  is classified according to the type of hematopoietic lineage of the bone marrow.<unk> s are mostly triggered by bacterial or viral infections.<unk>  is differentiated from leukemias by the absence of blast cells on peripheral blood film and high LAP score.<unk>  can lead to serious complications such as tumor lysis syndrome and DIC. The treatment includes treating the underlying cause and leukapheresis.
Leukemoid reaction
Mast cell leukemia
Lymphoid leukemia
AIDS-related lymphoma
Prolymphocytic leukemia
Acute myeloid leukemia
Chronic neutrophilic leukemia
T-cell leukemia