Eosinophils are a type of white blood cell. They help fight off infections and play a role in your body's immune response. They can also build up and cause inflammation.
Normally your blood doesn't have a large number of eosinophils. Your body may produce more of them in response to
- Allergic disorders
- Skin conditions
- Parasitic and fungal infections
- Autoimmune diseases
- Some cancers
- Bone marrow disorders
In some conditions, the eosinophils can move outside the bloodstream and build up in organs and tissues. This can happen in many different parts of the body, including the esophagus, heart, lungs, blood, and intestines. Treatment of eosinophilic disorders can vary, depending on the cause and which part of the body is affected. Steroids are often part of the treatment.
- Feeding Tubes (American Partnership for Eosinophilic Disorders)
- Churg-Strauss Syndrome (Mayo Foundation for Medical Education and Research)
- Eosinophilic Fasciitis (Merck & Co., Inc.)
- Eosinophilic Granulomatosis with Polyangiitis, formerly Churg-Strauss Syndrome (EGPA) (Johns Hopkins Vasculitis Center)
- Eosinophilic Lung Disorders (National Jewish Health)
- Hypereosinophilic Syndrome (HES) (American Partnership for Eosinophilic Disorders)
- Leukemia -- Eosinophilic (American Society of Clinical Oncology)
- Eosinophil peroxidase deficiency: MedlinePlus Genetics (National Library of Medicine)
- PDGFRA-associated chronic eosinophilic leukemia: MedlinePlus Genetics (National Library of Medicine)
- PDGFRB-associated chronic eosinophilic leukemia: MedlinePlus Genetics (National Library of Medicine)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Current Perspective Regarding the Immunopathogenesis of Drug-Induced Hypersensitivity Syndrome/Drug Reaction with...
- Article: The association between eosinophilic exacerbation and eosinophilic levels in stable COPD.
- Article: Clinical Outcome of Eosinophilia in Patients with COVID-19: A Controlled Study.
- Eosinophilic Disorders -- see more articles
- Eosinophilic Disorders Glossary (American Partnership for Eosinophilic Disorders)
- About Eosinophilic Disorders (Children's Hospital of Philadelphia)