Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate mild pulmonary edema . Linear atelectasis is seen within the left lower lung . There is no new effusion or pneumothorax . An inferiorly placed central venous catheter tip is noted at the cavoatrial junction . The mediastinal contours are notable for slight prominence of the right paratracheal stripe consistent with patient 's known mediastinal lymphadenopathy . The right main pulmonary artery appears enlarged , consistent with pulmonary hypertension .
    OUTPUT:
    
1 . Mild pulmonary edema . 2 . Mediastinal lymphadenopathy , and pulmonary arterial enlargement , better seen on previous CT . 3 . Inferiorly placed central venous catheter with distal tip projecting over the cavoatrial junction .