Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the immediate prior study , the left lower lobe consolidation or collapse has slightly improved , and the left pleural effusion and mild cardiomegaly are unchanged . The ill - defined opacity at the right base appears improved compared with the morning of ___ , and likely unchanged from the evening of ___ . All lines and tubes are in standard position . There is no pneumothorax or pulmonary edema .
    OUTPUT:
    
1 . Slight interval improvement in left lower lobe consolidation or collapse . 2 . Unchanged ill - defined right base opacity .