Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . A PICC ends in the right atrium at a level 8 cm below the carina . For placement within the superior vena cava the line would need to be withdrawn 4 cm . Cardiomediastinal silhouette is unremarkable . Blunting of both the lateral and posterior pleural sulci could be due to either small effusions or , particularly on the right where there is pleural calcification , pleural scarring . Lungs are clear .
    OUTPUT:
    
Although line withdrawal of 2 cm was recommended to ___ line nurse , ___ by Dr . ___ at 1 : 20 on ___ , 4 cm withdrawal would be more reliable to reposition the line in the low SVC . Small bilateral pleural effusions or pleural scarring , particularly on the right .