Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC is seen with tip in the lower SVC . Linear left basilar opacity is likely atelectasis . There has been interval clearance of the previously noted retrocardiac opacity . The lungs are now clear given rotation . The cardiomediastinal silhouette is within normal limits for projection . No acute osseous abnormalities .
    OUTPUT:
    
Left PICC tip in the lower SVC .