Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates within the junction of the SVC and right atrium . Lung volumes are low . The heart size is accentuated as a result , but appears to be border line enlarged . The aorta is mildly tortuous . Mediastinal contours are unchanged , and there is no evidence of pulmonary vascular congestion . Patchy opacities seen within the right perihilar region , which appear relatively unchanged compared to the previous exam . Known pulmonary nodules are better assessed on the preceding CT . Atelectatic changes within the lung bases are slightly more pronounced , likely due to low lung volumes . No large pleural effusion or pneumothorax is seen . There are mild degenerative changes in the thoracic spine . Partially imaged is a percutaneous catheter within the right upper quadrant of the abdomen . Surgical anchors are redemonstrated within both shoulders .
    OUTPUT:
    
Low lung volumes with slightly worse bibasilar atelectasis . Known pulmonary nodules are better assessed on the preceding CT . Similar appearance of patchy right perihilar opacity .