Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Midline sternotomy wires and mediastinal clips are again noted . There is stable elevation of the left hemidiaphragm . Right basal plate - like atelectasis is noted . There is no definite sign of pneumonia . There are calcified pleural plaques projecting over the mid lungs . Heart size can not be assessed . Mediastinal contour is stable . Bony structures are intact .
    OUTPUT:
    
Bibasilar atelectasis with stable elevation of the left hemidiaphragm .