Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Opacification of left hemidiaphragm , downward displacement of the major fissure is compatible with patient 's known chronic left lower lobe collapse . No new focal consolidation is seen to suggest pneumonia . There is no pleural effusion or pneumothorax . Anterior cervical fusion hardware , a percutaneous gastrostomy tube and tracheostomy collar are noted . Cardiac and mediastinal contours are unchanged .
    OUTPUT:
    
No acute cardiopulmonary process .