Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate a right - sided central venous catheter with tip terminating in the mid-to - lower SVC . The cardiomediastinal silhouette is unremarkable . There is laminar calcification along the aortic arch . The lungs are clear . There is no pneumothorax , vascular congestion , or pleural effusion .
    OUTPUT:
    
No evidence of pneumonia .