These are a diverse group of disorders characterized by an increased number of eosinophils in one or more compartments of the lung and/or the peripheral blood stream, often associated with radiographic changes and PFT abnormalities..

• Review the major eosinophilic pulmonary disorders.

• Distinguish acute and chronic eosinophilic pneumonia (AEP and CEP).

• Be familiar with common presentations of AEP, CEP, allergic bronchopulmonary aspergillosis (abpa), eosinophilic granulomatosis with polyangiitis (EGPA, Churg- Strauss Syndrome), hypereosinophilic syndrome.