Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is slightly limited by patient rotation and oblique positioning . Moderate enlargement of the cardiac silhouette is noted . Aorta is tortuous and demonstrates atherosclerotic calcifications . Mild interstitial pulmonary edema and small left pleural effusion are demonstrated . Retrocardiac patchy opacity is most likely atelectasis . No pneumothorax is present . Multilevel degenerative changes are seen within the thoracic spine which is diffusely demineralized with findings suggestive of a severe compression deformity within the upper / mid thoracic spine .
    OUTPUT:
    
Mild pulmonary edema and small left pleural effusion . Retrocardiac patchy opacity , likely atelectasis .