Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes . The cardiac silhouette is enlarged . The aorta is calcified and unfolded . Prominence of the superior mediastinum may relate today AP portable technique low lung volumes and unfolded aorta however , if there is clinical concern for acute mediastinal process , chest CT is more sensitive . Bilateral perihilar opacities are concerning for vascular congestion . Patchy right basilar opacities are seen with differential diagnosis including infection , aspiration , an atelectasis . No large pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Prominence of the superior mediastinum may relate today AP portable technique low lung volumes and unfolded aorta however , if there is clinical concern for acute mediastinal process , chest CT is more sensitive . Bilateral perihilar opacities are concerning for vascular congestion . Patchy right basilar opacities may relate to atelectasis but underlying infection or aspiration not excluded .