Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right internal jugular catheter terminates in the proximal to mid SVC . The cardiomediastinal contour is unchanged . The heart is not enlarged . Linear areas atelectasis is are noted at the left lung base . Mild prominence of the pulmonary vasculature may be due to low lung volumes and crowding of the bronchovascular structures . No pleural effusion . No consolidation seen .
    OUTPUT:
    
Linear atelectasis at the left lung base .