Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is perihilar bronchial wall thickening bilaterally . Peribronchial consolidation is minimal . There is no effusion , or pneumothorax . The heart is upper limits of normal . There is no free air below the diaphragm .
    OUTPUT:
    
Bilateral perihilar bronchial wall thickening is suggestive of atypical pneumonia such as viral or mycoplasma pneumonia .