Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine AP portable view of the chest was obtained . The cardiac silhouette is quite enlarged , underlying pericardial effusion or cardiomyopathy is not excluded . Mediastinal contours are unremarkable . Incidental note is made of an azygos lobe . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There is no pulmonary edema .
    OUTPUT:
    
Enlarged cardiac silhouette , underlying pericardial effusion or cardiomyopathy not excluded . No pulmonary edema .