Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left subclavian central venous catheter tip terminates in the upper SVC . Heart size remains mildly enlarged . The aorta is mildly tortuous . Previously noted skin ___ have been removed . The pulmonary vasculature is normal . Apart from mild atelectasis in the left lung base , the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Multilevel degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
No radiographic evidence for pneumonia .