Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left upper extremity PICC terminates at the superior cavoatrial junction . The lungs are well inflated and clear . There is mild cardiomegaly . There is no pleural effusion or pneumothorax . Visualized upper abdomen is unremarkable . Degenerative changes are noted in the upper thoracic spine .
    OUTPUT:
    
Left upper extremity PICC terminating at the cavoatrial junction .