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[Idiopathic chronic eosinophilic pneumonia].
G N Thuy1, A Cuguilliere, C Arteaga
1Service de Pneumologie, Hôpital d'Instruction des Armées Laveran, Marseille, France.
Medecine Tropicale : Revue Du Corps De Sante Colonial
|July 20, 1999
Summary
Idiopathic chronic eosinophilic pneumonia (ICEP) is a rare lung disease often affecting middle-aged asthmatics. Diagnosis relies on symptoms, eosinophilia, imaging, and response to corticosteroids.
Area of Science:
- Pulmonology
- Rare Diseases
- Immunology
Background:
- Idiopathic chronic eosinophilic pneumonia (ICEP) is a rare pulmonary disorder.
- First described 30 years ago, its etiology remains unknown.
- Typically affects asthmatic individuals in their fifth decade of life.
Observation:
- Cardinal features include respiratory symptoms, constitutional changes, and inflammation.
- Radiographic findings show bilateral pulmonary infiltrates.
- Blood eosinophilia is present in most cases.
Findings:
- Diagnosis is supported by eosinophil detection in bronchoalveolar lavage fluid.
- Histological examination may be necessary for atypical presentations.
- Extrapulmonary involvement suggests Churg-Strauss syndrome.
Implications:
- Differential diagnosis can be challenging due to similar conditions like acute eosinophilic pneumonia.
- Corticosteroid therapy is highly effective for ICEP.
- 20-30% of patients develop corticosteroid dependence due to frequent recurrence.