Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , and there is elevation the right hemidiaphragm with volume loss / infiltrate in the right lower lobe . The heart is mildly enlarged . The patient is status post sternotomy with sternal wires in place . There is an NG tube with tip in the stomach .
    OUTPUT:
    
Right lower lobe volume loss . An infiltrate in this region ca n't be excluded .