Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal image of the chest demonstrates well - expanded lungs . The hazy opacity in the right lung base is again seen , unchanged from previous imaging but much improved from earlier images . The left lung is clear . There is no left pleural effusion . There is no pneumothorax . Cardiomediastinal silhouette is unremarkable . A chest tube is again seen in place .
    OUTPUT:
    
Right basilar opacity consistent with empyema , unchanged from most recent imaging .