Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral lung opacities , right more than left , have slightly improved mainly in the right upper lobe . There are still some atelectatic bands in the left mid lung . There is no pneumothorax or pleural effusion . Mediastinal and cardiac contours are top normal and unchanged . Right - sided PICC line ends at cavoatrial junction .
    OUTPUT:
    
Slight improvement of widespread bilateral lung opacities which were mainly ground - glass opacities and atelectatic bands on recent CT .