Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated . Multifocal bilateral opacities are concerning for multifocal pneumonia atypical infection or viral infection . No pleural effusion , edema , or pneumothorax . Heart size is normal . Hilar contours are unchanged . No mediastinal widening .
    OUTPUT:
    
Multifocal pneumonia , atypical or viral .