Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding and subsegmental atelectasis . Allowing for that , an ill - defined airspace opacity in the right lung base may represent an early consolidation in the proper clinical setting . There is no pneumothorax or pleural effusion . Cardiac size is normal . Ill - defined right hilum and right heart border most likely represents a dilated esophagus ,
    OUTPUT:
    
1 . Low lung volumes . 2 . Possible early consolidation in the right lung base . 3 . Probably dilated esophagus