Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Linear density at the left lung base likely represents atelectasis or scarring . No definite consolidation , pleural effusion , or pneumothorax is detected . There is no evidence for pulmonary edema . Heart and mediastinal contours are stable . Right subclavian large bore central catheter terminating in the right atrium appears similarly positioned . Left PICC terminates in the upper superior vena cava , as before . Sternal wires appear intact . Mediastinal clips are noted . There is gaseous distention of the stomach , which is new compared to prior . Upper abdominal clips are noted , as seen previously .
    OUTPUT:
    
Low lung volumes . No radiographic evidence for acute cardiopulmonary process . New gaseous distention of the stomach .