Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There relatively low lung volumes . Subtle patchy lateral right base opacity is nonspecific and could be due to atelectasis or focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Relatively low lung volumes . Subtle patchy lateral right base opacity could be due to atelectasis or consolidation .