Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size , mediastinal , and hilar contours are normal . There is bronchial cuffing with increased background density and small irregular opacities , most commonly seen in chronic asthma . No focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No focal consolidation or pneumothorax . Probable asthma .