Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube and left - sided Port - A - Cath all remain in unchanged positions . Cardiac , mediastinal and hilar contours are normal . Lungs are clear . No pleural effusion , pulmonary edema , or pneumothorax is present .
    OUTPUT:
    
No acute cardiopulmonary process .