Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph obtained . Dialysis catheter resides in the right subclavian with tip in the mid SVC . Lungs are clear without signs of pneumonia or CHF . No effusion or pneumothorax . Cardiomediastinal silhouette is stable . Bony structures are intact . A stable soft tissue calcification resides adjacent to the left humeral neck .
    OUTPUT:
    
No signs of pneumonia .