Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation is seen . There are relatively low lung volumes on the frontal view . There is no pleural effusion or pneumothorax . The cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are unremarkable . No pulmonary edema is seen .
    OUTPUT:
    
Top - normal to mildly enlarged cardiac silhouette without overt pulmonary edema .