Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube remains in unchanged position . Left - sided Port - A - Cath tip terminates at the junction of the SVC and right atrium . Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is present . Deformity of the right third rib is unchanged . Gaseous distention of colonic loops of bowel is seen in the upper abdomen .
    OUTPUT:
    
No acute cardiopulmonary abnormality .