Surgical Pathology Criteria

Simple Eosinophilic Pneumonia

Differential Diagnosis

Simple Eosinophilic Pneumonia Acute Eosinophilic Pneumonia Chronic Eosinophilic Pneumonia
Asymptomatic to mild symptoms Fulminant respiratory insufficiency Chronic dyspnea, cough
Blood eosinophils mildly elevated Blood eosinophils normal to mildly elevated Blood eosinophils >1000/mm3
No direct treatment required Steroid responsive, no relapses Steroid responsive, 50% relapse


Known causes of eosinophilic pneumonia must be ruled out

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