Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more common diagnoses
Acute Eosinophilic Pneumonia (AEP)
 - M>F, Younger (20-40 yo), >40% tobacco hx
 - Fever+, Cough+, Dyspnea+, Pleuritic Chest Pain 
 - Diffuse Ground Glass +/- Effusions 
 - Rare Peripheral Eosinophilia
 - Steroid Responsive, ~2/3 still need mechanical ventilation
Chronic Eosinophilic Pneumonia (CEP)
 - F>M (2:1) 30-50 yo, <10% tobacco hx, >60% asthma hx
 - Progressive SOB + Cough + Constitutional Symptoms
 - Peripheral Consolidations AKA "inverse pulmonary edema"
 - Common Peripheral Eosinophilia (~90% with >6% eos)
 - Steroid Responsive. Commonly relapses, requiring prolonged taper. Rarely requires mechanical ventilation

Dr. Laura McNamara @mcnamara_lc - iMED @iMedEducation

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