Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the study of ___ , there is minimal increase in the areas of pleural air and fluid loculations consistent with the known empyema . Opacification along the right lateral chest wall is again seen . Right chest tube at the base of the lung is again seen . The left lung is essentially clear . Substantial enlargement of the cardiac silhouette persists , though there is no evidence of pulmonary vascular congestion .
    OUTPUT:
    
Minimal increase in the right - sided loculated hydro pneumothorax .