Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size remains top normal . Mediastinal and hilar contours are stable , and within normal limits . Left - sided Port - A - Cath tip terminates at the junction of the lower SVC and proximal right atrium . The lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .