Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube terminates 4 .6 cm from the carina . Retrocardiac opacity is concerning for atelectasis or aspiration . There is no pleural effusion , pneumothorax , or pulmonary edema . The cardiomediastinal silhouette is within normal limits . There is partially evaluated gaseous distention of the stomach .
    OUTPUT:
    
1 . Endotracheal tube ends 4 .6 cm from the carina . 2 . Retrocardiac opacity likely aspiration or atelectasis . 3 . Gaseous distention stomach is partially evaluated .