Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right chest port is present with distal tip in the proximal right atrium . Cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Atelectatic changes are present in the right lung base . The lungs are well expanded without focal consolidation . The upper abdomen is unremarkable .
    OUTPUT:
    
Atelectatic changes at the right lung base .