Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided Port - A - Cath ends in the lower SVC . The lungs are clear although volumes are low . There is no pleural effusion or pneumothorax . Cardiomegaly is stable . Mediastinal contours are within normal limits .
    OUTPUT:
    
No acute intrathoracic process . Stable cardiomegaly . No free air beneath the diaphragms .