Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is unchanged . The mediastinal and hilar contours appear similar . Pulmonary vasculature is normal . No focal consolidation , large pleural effusion or pneumothorax is present . Please note that the left costophrenic angle is excluded from the field of view . There are moderate degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Limited assessment of the left costophrenic angle . Otherwise , no acute cardiopulmonary abnormality .