Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . There is no focal consolidation concerning for lobar pneumonia . However , increased interstitial markings within the lung bases may be compatible with atypical pneumonia in the correct clinical setting .
    OUTPUT:
    
Increased bibasilar interstitial markings concerning for atypical pneumonia .