Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . Mediastinal and hilar contours are unchanged with a prominent left hilar density corresponding with minimally enlarged left pulmonary artery ( with preservation of normal diameter centrally ) , better evident on CTA performed ___ . Lungs are clear . Moderate peribronchial cuffing identified consistent with reported history of asthma and upper respiratory infection . No focal pulmonary opacification identified . Multilevel degenerative change detected .
    OUTPUT:
    
No evidence of pneumonia . Peribronchial thickening may represent asthma or bronchitis .