Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual - lumen central venous catheter tip terminates in the cavoatrial junction . The heart size is normal . Mediastinal and hilar contours are unremarkable . There is no focal consolidation , pleural effusion or pneumothorax . There is elevation of left hemidiaphragm . No acute osseous abnormality is seen . Low lung volumes are present .
    OUTPUT:
    
Elevated left hemidiaphragm . No acute cardiopulmonary abnormality .