Eosinophilic lung disease can be categorized as either pulmonary infiltrates with eosinophilia or eosinophilic pulmonary granulomatosis, two broad terms classifying inflammatory lung disease where eosinophils predominate. Differential diagnoses for eosinophilic lung disease are chronic allergic bronchitis, primary parasitic lung disease, bronchopneumonia (bacterial or mycotic), diffuse infiltrative neoplasm, mononuclear granulomatous disease like systemic lupus erythematosis, infectious diseases like rickettsia, atypical bacterial, protozoa, fungal, parasitic, or secondary bacterial infection due to foreign body.