Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A left upper extremity access PICC line is again seen with its tip in the region of the mid upper SVC . Lung volumes are low though allowing for this the lungs are clear . Cardiomediastinal silhouette unchanged .
    OUTPUT:
    
PICC line tip in the mid to upper SVC .