Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate a lingular opacity , likely representing pneumonia . No other areas of focal consolidation are identified . The cardiac , mediastinal , and hilar contours are otherwise normal . No pleural abnormality is detected .
    OUTPUT:
    
Lingular opacity likely representing pneumonia . No comparison radiographs are available . Follow up radiographs after treatment are suggested .