Anisocytosis
Saunders Veterinary Dictionary:
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anisocytosis
The presence in the blood of erythrocytes showing abnormal variations in size. Normal in some species, especially cattle.
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Anisocytosis
| Anisocytosis | |
|---|---|
| Classification and external resources | |
| ICD-10 | R71 |
| ICD-9 | 790.09 |
| DiseasesDB | 725 |
Anisocytosis is a medical term meaning that a patient's red blood cells are of unequal size. This is found in anemia and other blood conditions. False diagnostic flagging may be triggered by an elevated WBC count, agglutinated RBCs, RBC fragments, giant platelets or platelet clumps.
The red cell distribution width (RDW) is a measurement of anisocytosis[1] and is calculated as a coefficient of variation of the distribution of RBC volumes divided by the mean corpuscular volume (MCV)
Increased RDW is seen in iron deficiency anemia, Thalassemia Major (Cooley's anemia), Thalassemia Intermedia and myelodysplastic syndromes
References
- ^ Barbara J. Bain (2006). Blood cells: a practical guide. Wiley-Blackwell. pp. 66–. ISBN 978-1-4051-4265-6. http://books.google.com/books?id=1k2CB7qgt-8C&pg=PA66. Retrieved 10 November 2010.
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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