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Eosinophilia

**Eosinophilia**
*Classification & external resources*
ICD-10	D72.1
ICD-9	288.3
DiseasesDB	4328
eMedicine	med/685

Eosinophilia is the state of having a high concentration of eosinophils (eosinophil granulocytes) in the blood. The normal concentration is between 0 and 0.5 x 10⁹ eosinophils per litre of blood. Eosinophilia can be reactive (roughly, allergic) or non reactive.

Diagnostic procedure and investigations for blood eosinophilia

Additional recommended knowledge

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Diseases that feature eosinophilia:

The release of interleukin 5 by T cells, mast cells and macrophages stimulates the production of eosinophils.

v • d • e Pathology: hematology (primarily C81-C96/200-208, D45-D47, D50-D77/280-289)
WBCs	hematological malignancy (lymphoma, leukemia, multiple myeloma), myeloproliferative disease, myelodysplastic syndrome -cytosis (Agranulocytosis, Leukocytosis, Lymphocytosis, Monocytosis) • -penia (Lymphopenia, Neutropenia)
RBCs/anemia/ hemoglobinopathy	nutritional anemia: Iron deficiency anemia, Plummer-Vinson syndrome, Megaloblastic anemia (Pernicious anemia) hereditary hemolytic anemia: G6PD Deficiency, Thalassemia, Sickle-cell disease/trait, Hereditary spherocytosis, Hereditary elliptocytosis, Hereditary stomatocytosis acquired hemolytic anemia: Autoimmune (Warm), HUS, MAHA, PNH, PCH aplastic anemia: Acquired PRCA, Diamond-Blackfan anemia, Fanconi anemia • Sideroblastic anemia • Hemochromatosis
Coagulation/platelets	coagulopathy: DIC • Hemophilia (A/VII, B/IX, C/XI, XIII) • Von Willebrand disease Purpura: Henoch-Schönlein, ITP (Evans syndrome), TTP primary hypercoagulable state: Protein C deficiency - Protein S deficiency - Antithrombin III deficiency - Antiphospholipid syndrome - Factor V Leiden other hemorrhagic conditions: Bernard-Soulier syndrome - Glanzmann's thrombasthenia - Grey platelet syndrome
Histiocytosis	WHO-I Langerhans cell histiocytosis - non-Langerhans-cell histiocytosis/WHO-II (Juvenile xanthogranuloma, Hemophagocytic lymphohistiocytosis) - malignant histiocytic disorders/WHO-III (Acute monocytic leukemia, Malignant histiocytosis, Erdheim-Chester disease)
Other	Asplenia/hyposplenism - Methemoglobinemia