Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is a right Port - A - Cath terminating at the right atrium . The heart size is top - normal . The hilar and mediastinal contours are within normal limits . A left retrocardiac opacity may reflect atelectasis , difficult to differentiate from in early consolidation or effusion . There is no right - sided effusion . There is no pneumothorax .
    OUTPUT:
    
Examination limited by low lung volumes . A left basilar opacity may reflect atelectasis , early consolidation , or effusion .