Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Mediastinal and hilar contours appear unchanged . Small right pleural effusion appears slightly increased compared to the previous exam with worsening right basilar opacification . No left - sided pleural effusion or pneumothorax is identified . Scarring within the lung apices is re - demonstrated as are emphysematous changes . No pulmonary vascular congestion is noted . Remote left - sided rib fractures are present .
    OUTPUT:
    
Interval increase in size of small right pleural effusion with worsening right basilar opacification , likely reflective of compressive atelectasis , though infection can not be completely excluded .