Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Surgical clips project over the left axilla . The cardiac , mediastinal and hilar contours appear unchanged . There is again mild - to - moderate relative elevation of the right hemidiaphragm . There is no pleural effusion or pneumothorax . Patchy opacity projects over the right mid lung , potentially an early focus of pneumonia , but not very striking .
    OUTPUT:
    
Patchy opacity in the right mid lung , for which early pneumonia could be considered in the appropriate clinical setting . Atelectasis is also possible . Short - term followup radiographs may be useful to evaluate further if clinically indicated .