Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is severely rotated , limiting evaluation . The left costophrenic angle not fully included on the image . Given this , the cardiac and mediastinal silhouettes are grossly stable . Difficult to exclude small right pleural effusion . Left base opacity could be due to atelectasis , but infectious process is not excluded in the appropriate clinical setting .
    OUTPUT:
    
Limited study due to severe patient rotation . Additionally , the left costophrenic angle is not fully included on the image . Given the above , mild left base opacity could be due to atelectasis , but infection is not excluded in the appropriate clinical setting . Difficult to exclude a small right pleural effusion . Stable appearing cardiomediastinal silhouette .