Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to prior radiograph from same - day , the right pleural effusion is smaller , however still large in size . There is improved resultant aeration of the right upper lung . The moderate left pleural effusion is not appreciably changed in size . Stable appearance of the left upper lung . Right upper chest Port - A - Cath is in an unchanged orientation .
    OUTPUT:
    
Interval decrease in size of a still large right pleural effusion status post thoracentesis . Moderate left pleural effusion is not appreciably changed .