Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy and CABG . There is wedge - shaped opacification at the right costophrenic angle ; differential diagnosis includes infection versus pulmonary infarct . This finding is not well seen on the lateral view . The left lung is clear . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Wedge - shaped opacity at the right costophrenic angle could be due to consolidation due to infection or pulmonary infarct , less likely pleural fluid ; not well seen on the lateral view . Chest CT is pending .