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 . There are relatively low lung volumes . The aorta is calcified and tortuous . The cardiac silhouette is top normal . Bilateral suprahilar opacities are felt to more likely represent vascular structures versus less likely areas of consolidation . No pleural effusion or pneumothorax is seen . Right upper lobe nodular calcifications measuring up to 5 mm are most consistent with calcified granuloma .
    OUTPUT:
    
Bilateral suprahilar opacities may be due to vascular structures , although underlying consolidation due to infection is not excluded .