Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is grossly stable prominence of the right hilum . There is slight blunting of the left costophrenic angle which may be due to overlying soft tissue although trace pleural effusion is difficult to exclude . The lateral view also suggests posterior basal consolidation , although not well seen on the frontal view , could be in the left lower lung . The aorta remains calcified and tortuous . The cardiac silhouette is stable . No overt pulmonary edema is seen .
    OUTPUT:
    
Posterior basilar opacity best seen on the lateral view , raises concern for underlying consolidation which may be due to infection or aspiration . Not well appreciated on the frontal view .