Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates at the SVC / right atrial junction , unchanged . Heart size is normal . Mediastinal and hilar contours are unchanged . Pulmonary vasculature is not engorged . Patchy opacities in lung bases likely reflect areas of atelectasis . No pleural effusion or pneumothorax is detected . There are no acute osseous abnormalities . No subdiaphragmatic free air is present .
    OUTPUT:
    
Patchy bibasilar airspace opacities may reflect atelectasis . Infection is not excluded in the correct clinical setting .