Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There are low lung volumes that accentuate the bronchovascular markings . Right basilar opacity may represent atelectasis , although an early infectious process is not excluded in the appropriate clinical setting . There is slight blunting of the right costophrenic angle and a trace pleural effusion may be present . The cardiac silhouette is top normal to mildly enlarged . The aortic knob remains calcified , similar in appearance .
    OUTPUT:
    
Low lung volumes which accentuate the bronchovascular markings . Right base opacity may be due to atelectasis , although infectious process is not excluded .