Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided central line tip projects over the expected region of the upper SVC . There is no evidence of pneumothorax . Bilateral low lung volumes are noted with crowding of bronchovascular markings . No focal consolidations or pleural effusions . The cardiac silhouette is somewhat accentuated by low lung volumes .
    OUTPUT:
    
Left central IJ line tip projecting over the expected region of the upper SVC . No evidence of pneumothorax .