Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . There is stable irregular opacity in the lower lungs compatible with known areas of scarring as assessed on prior CT . No definite signs of pneumonia or CHF . Cardiomediastinal silhouette appears stable with top normal heart size redemonstrated . No pleural effusion or pneumothorax . Bony structures appear intact .
    OUTPUT:
    
No signs of pneumonia or CHF . Stable areas of scarring in the lower lungs .