Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Extensive , accentuated and dilated bronchi , most predominant in the right lung , are unchanged . There is slight improvement in aeration of the right lung base . Hyperinflation of the left lung is stable . There is no focal consolidation worrisome for pneumonia , pleural effusion or pneumothorax . A nodule seen in the right upper lung is thought to correspond to an area of scarring seen on the prior chest CT ( 601B : 14 on that study ) . Cardiac and mediastinal contours are normal . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe right lower lobe bronchiectasis without a focal consolidation and improved aeration of the right lung base .