Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral upright chest radiograph demonstrates a ventriculoperitoneal shunt which traverses the subcutaneous tissues of the right neck and projects over the right upper thorax . It s tip is not clearly visualized . This shunt appears new since prior radiograph dated ___ . Lungs are clear with no focal opacity identified . There is no pleural effusion or pneumothorax identified . The cardiomediastinal and hilar contours are within normal limits . Visualized osseous structures are without abnormality .
    OUTPUT:
    
No acute intrathoracic abnormality . No focal opacity concerning for pneumonia .