Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are hyperinflated . In this patient with known chronic pulmonary disease , multifocal parenchymal opacities in the setting ___ ___ are re-demonstrated . There is interval development of subtle opacity in the right and left lower lungs which could represent a mild superimposed pneumonia . No pneumothorax or pleural effusion seen . Cardiomediastinal silhouette is stable . Bony structures intact .
    OUTPUT:
    
Subtle opacities are new in the lower lungs and could represent pneumonia . Stable hyperinflation and scattered nodular opacities which are chronic in the setting ___ ___ infection .