Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiograph obtained 3 days prior , no significant changes are appreciated . Lung volumes remain somewhat low with substantial left lower lobe atelectasis , better appreciated on CT scan obtained ___ . Small , left greater right pleural effusions are unchanged . No pulmonary vascular congestion or pulmonary edema . Visualized cardiomediastinal hilar silhouettes are normal . A right - sided PICC terminates in the mid SVC .
    OUTPUT:
    
Overall unchanged chest radiograph with low lung volumes and substantial left lower lobe atelectasis and small , left greater right pleural effusions .