Idiopathic acute eosinophilic pneumonia

What is Idiopathic acute eosinophilic pneumonia?

Idiopathic acute eosinophilic pneumonia (IAEP) is an eosinophilic pneumonia of undetermined etiology that is characterized by acute febrile hypoxic respiratory failure associated with diffuse radiographic infiltrates and pulmonary eosinophilia, but without concurring allergy or infection.

Other condition names

  • IAEP

Inheritance type



  • Worldwide: <1 in 1,000 000

Age of Onset

  • All ages
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on "". Data version 1.3.16 / 4.1.7.