Abstract
Cytopenia is a reduction in the number of mature blood cells. It takes a number of forms:
- Low red blood cell count: resulting in anemia.
- Low white blood cell count: leukopenia or neutropenia. Because neutrophils make up at least half of all white cells, they are almost always low in leukopenia .
- Low platelet count: thrombocytopenia.
- Low granulocyte count: granulocytopenia
- Low red blood cell, white blood cell, and platelet counts: pancytopenia.