Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lines and Tubes : There is a left - sided PICC terminating in the distal left subclavian and could be advanced by approximately 3 .5 cm . EKG leads overlie the chest wall . Lungs : The lung volumes are low . Interval improvement in the right visual effusion with a persistent small residual left digital effusion . Dense left retrocardiac opacity likely atelectasis and / or pneumonia . Pleura : Bilateral small pleural effusions left greater than right . Mediastinum : There is cardiomegaly as before . Aortic knob calcification persists . Bony thorax : No interval change
    OUTPUT:
    
Low lung volumes with dense left retrocardiac opacity , likely atelectasis and / or pneumonia in the right clinical setting . Left PICC terminates in the distal left subclavian ___ , ___ be advanced by approximately 3 .5 cm . Stable cardiomegaly with interval improvement in bilateral fissural effusions with unchanged small pleural effusions left greater than right .