Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right Port - A - Cath terminates in the right atrium , unchanged from prior . Lung volumes are extremely low , limiting evaluation of the lung bases . Increased opacity within the medial right lung is likely due to atelectasis . No confluent consolidation is identified . There is no pneumothorax . No pulmonary edema is identified . There is no large pleural effusion . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
Low lung volumes with probable right basilar atelectasis . No confluent consolidation .