Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right upper extremity PICC has been removed in the interim . There is been improvement in the small left pleural effusion . Linear atelectasis seen in the left midlung . The right lung is essentially clear . There is no focal airspace consolidation or pneumothorax .
    OUTPUT:
    
Slight decrease in small left pleural effusion .