Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low with platelike atelectasis at the left lung base . A left - sided PICC terminates in the proximal SVC . Knee known retrocardiac opacity is similar in degree when compared to the prior study . No new areas of consolidation are seen . No pneumothorax seen . Possible trace left pleural effusion .
    OUTPUT:
    
No significant interval change when compared to the prior study .