Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated slightly to the left . There is some obscuration of the left hemidiaphragm , which could be due to atelectasis ; however , underlying left base retrocardiac consolidation may be present . Aside from minor right basilar atelectasis , the right lung is clear . While trace pleural effusions would be difficult to exclude , no large pleural effusions are seen . There is no evidence of pneumothorax . The aortic knob is calcified . The cardiac silhouette is not enlarged . The cardiomediastinal silhouette is stable as compared to prior .
    OUTPUT:
    
Obscuration of the left hemidiaphragm and left basilar retrocardiac patchy opacity raises concern for a left basilar consolidation .