Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . Mediastinal and hilar contours are within normal limits . There is no pulmonary edema , pleural effusion or pneumothorax identified . Minimal patchy atelectasis is noted in the lung bases without focal consolidation . Mild hypertrophic changes are seen in the thoracic spine .
    OUTPUT:
    
Minimal atelectasis in the lung bases . Otherwise , no radiographic evidence for pneumonia .