Eosinophilic Disorders Summary 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. Treatment of the problem depends on the cause. Children About Eosinophilic Disorders Children’s Hospital of Philadelphia Specifics Churg-Strauss Syndrome Mayo Foundation for Medical Education and Research EoE (Eosinophilic Esophagitis) American Partnership for Eosinophilic Disorders Eosinophilic Fasciitis Merck & Co., Inc. Eosinophilic Gastrointestinal Disorders National Institute of Allergy and Infectious Diseases 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 Clinical Trials ClinicalTrials.gov: Churg-Strauss Syndrome National Institutes of Health ClinicalTrials.gov: Eosinophilia National Institutes of Health ClinicalTrials.gov: Hypereosinophilic Syndrome National Institutes of Health Array Eosinophil count – absolute Eosinophilic fasciitis Simple pulmonary eosinophilia Start Here Eosinophilia Mayo Foundation for Medical Education and Research Eosinophilic Disorders Merck & Co., Inc. Reference Desk Eosinophilic Disorders Glossary American Partnership for Eosinophilic Disorders Living With Feeding Tubes American Partnership for Eosinophilic Disorders Genetics Genetics Home Reference: eosinophil peroxidase deficiency National Library of Medicine Genetics Home Reference: PDGFRA-associated chronic eosinophilic leukemia National Library of Medicine Genetics Home Reference: PDGFRB-associated chronic eosinophilic leukemia National Library of Medicine Find an Expert National Institute of Diabetes and Digestive and Kidney Diseases National Institute of Diabetes and Digestive and Kidney Diseases Journal Articles Eosinophilic Disorders Diagnosis and Tests Upper GI Endoscopy National Institute of Diabetes and Digestive and Kidney Diseases