Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes . Medial right base opacity could be due to atelectasis however consolidation is not excluded in the appropriate clinical setting . No pleural effusion is seen . The cardiac and mediastinal silhouettes are stable . There is no pulmonary edema . No evidence of pneumothorax is seen .
    OUTPUT:
    
Relatively low lung volumes . Medial right base opacity could be due to atelectasis , consolidation is not excluded in the appropriate clinical setting .