Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided PICC terminates in the low SVC and is in appropriate position . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . There is very minimal , linear atelectasis at the left base , improved from the prior study . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Right - sided PICC terminates in the low SVC and is in appropriate position . 2 . Minimal , linear left basal atelectasis , improved from the prior study .