In acute eosinophilic pneumonia (AEP), Pulmonary function tests show reduced forced vital capacity and total lung capacity with a normal forced expiratory volume in one second; diffusing capacity for carbon monoxide (DLCO) is commonly reduced. Bronchoalveolar lavage (BAL) is performed in the majority of patients to exclude infection, hemorrhage, or malignancy. The BAL is performed using a sequential instillation and recovery of 50 to 60 mL. The median BAL cellularity was 350,000/mm3. BAL eosinophilia was present in all cases with a median of 38%. Lung biopsy is rarely necessary to make a diagnosis of AEP in immunocompetent patients with a compatible history and prominent BAL eosinophilia in the absence of infection or other known precipitant.
Eosinophilic pneumonia other diagnostic studies
Cryptogenic organizing pneumonia other diagnostic studies
Lipoid pneumonia other diagnostic studies
Lung abscess other diagnostic studies
Eosinophilic pneumonia other imaging findings
Bronchiectasis other diagnostic studies
Idiopathic pulmonary fibrosis other diagnostic studies
Pneumoconiosis other diagnostic studies