Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . Patchy opacity in the right base was not clearly seen in prior exam . The remaining lungs are clear . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar contours are unchanged . Healed fractures of the fifth , sixth , seventh posterior right ribs are noted . Prior tracheostomy tube no longer seen .
    OUTPUT:
    
Patchy opacity in the right lung base might represent atelectasis versus developing consolidation or aspiration . Clinical correlation is advised .