Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP frontal and lateral chest radiographs demonstrate symmetric well - expanded lungs . Cardiomediastinal contours are within normal limits . Lungs are clear without focal areas of consolidation . No pleural effusions and no pneumothorax . Left - sided rib deformities , likely from old fractures , are unchanged .
    OUTPUT:
    
No evidence of pneumonia .