Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided Port - A - Cath tip terminates at the SVC / right atrial junction . Heart size is normal . The mediastinal and hilar contours are unchanged . There is mild upper zone vascular redistribution . Patchy opacities in lung bases likely reflect areas of atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . Clip is noted in the left upper quadrant of the abdomen .
    OUTPUT:
    
Mild pulmonary vascular congestion . Patchy bibasilar opacities likely reflect atelectasis , though early infection is not completely excluded .