Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an endotracheal tube in the expected position , terminating 4 .1 cm above the level of the carina . A focal airspace opacity at the right lung base and may reflect atelectasis versus aspiration . There is no evidence of pleural effusion , pneumothorax , or overt pulmonary edema . The cardiomediastinal silhouette is normal . An orogastric tube is seen terminating within the stomach . No acute bony abnormality is detected .
    OUTPUT:
    
1 . ETT terminating 4 .1 cm above the carina . 2 . Right lower lobe airspace opacity , likely atelectasis versus aspiration .