Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is moderately enlarged . Mediastinal and hilar contours are unremarkable . No pulmonary edema is present . Patchy bibasilar opacities likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis . No radiographic evidence for pneumonia .