Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Mild prominence of the cardiac silhouette is likely secondary to the low lung volumes . Mediastinal and hilar contours are within normal limits . There is no evidence for pulmonary consolidation , pulmonary edema , pleural effusion , or pneumothorax . The ribs are underpenetrated , as expected on chest radiography for better visualization of the lungs . The lower ribs are particularly poorly penetrated and not fully included on the images . No displaced fracture of the visualized ribs is detected .
    OUTPUT:
    
No evidence for acute cardiopulmonary abnormalities .