Differential diagnosis considerations |
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Eosinophilic granulomatosis with polyangiitis |
Pulmonary fungal infections |
Pulmonary parasitic infections |
Medication effects |
Pulmonary infiltration of eosinophils secondary to overwhelming peripheral eosinophilia |
Clinical diagnostic criteria for acute eosinophilic pneumonia |
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Febrile illness less than four weeks in duration |
Hypoxemic respiratory failure |
Diffuse pulmonary opacities on chest radiograph |
Bronchoalveolar lavage (BAL) with cell count demonstrating >25% eosinophilia |
Absence of other known causes for pulmonary eosinophilia |
Differential diagnosis considerations |
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Recent e-cigarette use |
Pulmonary infiltrates on chest imaging |
Absence of pulmonary infection |
No evidence of an alternative cause |