Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . There is a diffuse interstitial abnormality , with a perihilar predominance , suggestive of mild interstitial pulmonary edema . Moderate enlargement of the cardiac silhouette is not significantly changed . A small left pleural effusion is not significantly changed . There is no definite right pleural effusion . The mediastinal contours are unchanged . There is a small hiatal hernia , not significantly changed . There is no pneumothorax . Surgical clips project over the upper abdomen on the lateral radiograph . Multilevel degenerative changes of the thoracolumbar spine are noted . Anterior wedging of a lower thoracic vertebral body is not significantly changed .
    OUTPUT:
    
1 . Mild interstitial pulmonary edema . No focal consolidation . 2 . Moderate cardiomegaly , not significantly changed . 3 . Unchanged small left pleural effusion .