Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a left - sided PICC extending to the level of the mid SVC . There has been interval improvement of the right medial lung base opacity . No new focal consolidations are seen . There are no pleural effusions or pneumothorax . The heart is mildly enlarged . The mediastinal contour is stable with atherosclerotic calcifications at the aortic knob . Again seen are the midline sternotomy wires and mediastinal clips as well as the prosthetic cardiac valve .
    OUTPUT:
    
No new focal consolidations identified to explain patient 's worsening hypoxemia .