Leukocytosis

What is Leukocytosis?

Leukocytosis refers to an increase in the number of white blood cells (leukocytes). It is a common reaction to a variety of inflammatory states. Newborn infant> 38,000 per mm3 (13.0 to 38.0 × 109 per L)Infant two weeks of age> 20,000 per…
Neutropenia

What is Neutropenia?

Neutropenia is a condition characterized by a lower- than- normal level of neutrophils (a type of white blood cell) in the blood with absolute neutrophil count of less than 500 cells/microliter.
Agranulocytosis

What is Agranulocytosis?

Agranulocytosis is a condition that occurs when the bone marrow does not produce enough granulocytes or neutrophils (a type of white blood cell) resulting to an extremely low number of granulocytes in the blood. Agranulocytosis is a severe form of…
Leukopenia

What is Leukopenia?

Leukopenia is a condition where there is abnormally low number of white blood cells (leukocytes). Types of leukopenia include:  AgranulocytosisNeutropenia Leukopenia: Circulating white blood cell (WBC) count to < 4000/mcL (< 4 × 109/L). Neutropenia: Circulating blood neutrophil count to < 1500/mcL (< 1.5…
AIDS

WHAT IS WHITE BLOOD CELL PATHOLOGY?

White blood cell pathology is a blood disorder in which the white blood cells are either abnormally low (leukopenia) or abnormally high (leukocytosis). There are two broad categories which include leukopenias and proliferative disorders (leukocytosis). The proliferation of white blood…
Hemangiopericytoma

What is Hemangiopericytoma?

Hemangiopericytoma is a rare metastasis tumor derived from pericytes surrounding the blood vessels. What is the Pathology of Hemangiopericytoma? The pathology of hemangiopericytoma is: -Etiology: The cause of hemangiopericytoma is unknown. -Genes involved: Unknown. -Pathogenesis: The sequence of events that…