The European Respiratory Society eosinophilic granulomatosis with polyangiitis diagnostic criteria
| Asthma |
| Blood eosinophil count ≥1×109 cells per L |
| And at least two of the following: |
| ANCA positivity (myeloperoxidase or proteinase 3) |
| Palpable purpura |
| Alveolar haemorrhage |
| Glomerulonephritis |
| Cardiomyopathy |
| Histopathological evidence of eosinophilic vasculitis |
| Sino-nasal disease |
| Non-fixed pulmonary infiltrates |
| Mono or polyneuropathy |
Information from [13].