Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Midline sternotomy wires are again noted as well as mediastinal clips . Linear densities in the left lower lung likely reflect atelectasis . There may be mild pulmonary edema . The heart size is difficult to assess but appears grossly stable . The mediastinal contour is unremarkable . No large effusions are seen . Bony structures are intact .
    OUTPUT:
    
Probable mild pulmonary edema with left basal atelectasis .