Cytopenia
As cytopenia (from ancient Greek κύτος Cytos , German , cavity ' (transmitted cell') and ancient Greek πενία PENIA , German , lack 'poverty ) is defined as the reduction in the number of cells in the blood . The term cytopenia is used in the English-language specialist literature .
Depending on which cells of the blood are affected, one speaks of one:
- Erythrocytopenia , a lack of red blood cells. A special form of anemia that can also be caused by a lack of hemoglobin or a decrease in hematocrit .
- Thrombocytopenia ( thrombopenia for short ), a lack of platelets (less than 150,000 per microliter of blood)
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Leukopenia (complete leukocytopenia ), a lack of white blood cells (less than 4000 white blood cells per microliter of blood). In leukopenia, depending on which leukocytes are affected, a further differentiation is made into:
- Neutropenia , also known as granulocytopenia , is a lack of neutrophils (fewer than 1,800 neutrophils per microliter of blood). The most common form of leukopenia.
- Lymphopenia (complete lymphocytopenia ), a lack of lymphocytes (less than 1000 per microliter of blood)
- Monocytopenia , a lack of monocytes (less than 80 per microliter of blood)
- Eosinopenia , a lack of eosinophils (less than 50 per microliter of blood)
If all three cell rows (erythrocytes, thrombocytes and leukocytes) of the blood are affected - that is, there is anemia, thrombocytopenia and leukopenia - one speaks of pancytopenia or tricytopenia .
literature
- J. Margraf: Basics of special pathology. Verlag Elsevier, Urban & Fischer, 2008 ISBN 3-437-42426-2 p. 56f.
Individual evidence
- ↑ Disorders of the white blood count: diagnostics. In: Standards of internal medicine in basic and regular care E. Frantz and G. Dörr (editors), Verlag Steinkopff, 2005, ISBN 978-3-7985-1502-4 doi : 10.1007 / 3-7985-1541-7_42