Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube tip is in unchanged position . Heart size is normal . Mediastinal and hilar contours are unremarkable . Lungs are clear . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .