대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Chief Complaint

dyspnea (onset : 3 days ago)

Definitive Diagnosis

Acute eosinophilic pneumonia

Reviewy

Diagnosed when the following combination clinical and radiographic findings
Acute febrile illness of less than 5 days’ duration
Hypoxemia
Diffuse alveolar or mixed alveolar-interstitial opacities
BAL fluid consisting of more than 25% eosinophils
Absence of parasitic, fungal, or other infection
Prompt and complete response to corticosteroids
No relapse after discontinuation of corticosteroids
Cause
majority of cases are idiopathic
Tobacco smoke be a trigger for AEP,
especially in new-onset smokers

CT findings
Bilateral patchy GGO and consolidation
Poorly ill-defined nodules
Interlobular septal thickening

Keywords