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Eosinophilia
From WikEM
Contents
Background
- Defined usually as peripheral eosinophil count >0.5 x 109/L
- Eosinophils normally comprise <7% of total WBC count
Clinical Features
Differential Diagnosis
- Allergic reaction or other hypsersensitivity/atopic state
- Urticaria, atopic dermatitis, asthma, drug reaction/hypersensitivity
- DRESS syndrome
- Parasitic infection
- Coccidioidomycosis and other fungal infections
- Malignancy (e.g. lymphoma, eosinophilic leukemia)
- Skin disorders (e.g. bullous pemphigoid, dermatitis herpetiformis)
- Adrenal insufficiency
- Connective tissue disease (e.g. Churg-Strauss syndrome)
- Interstitial nephritis
- Arsenic
