Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube terminates 2 .9 cm above the carina . An enteric tube descends below the diaphragm and below the field of view . Cardiomediastinal and hilar contours are within normal limits . Increased opacity at the base of the left lung likely represents a small left pleural effusion and atelectasis . There is no pneumothorax .
    OUTPUT:
    
Small left pleural effusion and the pulmonary opacity at the base of the left lung likely represents atelectasis however infection should be considered in the appropriate clinical setting .