Classically develops in three sequential phases:
Atopic diseases, allergic rhinitis, and asthma
Multiorgan involvement, particularly lung and GI tract
Caused by eosinophilic infiltration into these organs
Life threatening vasculitis associated with vascular and extravascular<unk> 
May present with nonspecific signs such as fever, weight loss, malaise
Eosinophilic granulomatosis with polyangiitis
Aspirin-exacerbated respiratory disease
Granulomatosis with polyangiitis
Chronic eosinophilic pneumonia
Nephrogenic systemic fibrosis
Allergic bronchopulmonary aspergillosis
Thromboangiitis obliterans
Hypereosinophilic syndrome