Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The hila are prominent , with some peribronchial cuffing . There is no focal opacity to suggest pneumonia . There is no pulmonary edema , pleural effusion , pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
No evidence of pneumonia . Peribronchial cuffing could represent an underlying viral illness .