Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild prominence of the cardiac silhouette is likely exaggerated by low lung volumes on the PA view . Mediastinal and hilar contours are unremarkable . No evidence for pulmonary consolidation , pulmonary edema , pleural effusion , or pneumothorax . The ribs are not well penetrated on chest radiography for better visualization of the lungs , and the inferior ribs are not fully imaged . No obvious rib fracture is seen .
    OUTPUT:
    
No evidence for active cardiopulmonary disease . If clinically warranted , the right ribs could be better assessed by dedicated rib radiographs .