Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . The cardiac silhouette size appears moderately enlarged but unchanged . Mediastinal contour appears similar with unfolding of the thoracic aorta again seen . Mild pulmonary edema is new in the interval with a small right pleural effusion appearing similar . Small amount of fluid is also seen within the minor fissure . Patchy opacities in the lung bases likely reflect areas of atelectasis . No pneumothorax is present . There arm mild degenerative changes noted in the thoracic spine .
    OUTPUT:
    
Mild pulmonary edema , new in the interval , and similar - appearing small right pleural effusion . Patchy atelectasis in the lung bases .