Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The previous right lower lobe opacity has significantly improved since ___ . The lungs are otherwise clear of consolidation , pleural effusion or pulmonary edema . The heart , mediastinal , and hilar contours are normal . Left subclavian central venous line ends at the mid SVC . The ET tube and gastric tube are in appropriate position .
    OUTPUT:
    
Significant improvement in right lower lobe opacity since ___ likely to be improved lower lobe volume loss .