Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is slight blunting of the bilateral posterior costophrenic angles may be due to trace pleural effusions versus pleural thickening . Right base opacity is seen with differential diagnosis including atelectasis , infection , or aspiration . The cardiac silhouette is moderately enlarged . The aorta is calcified . There is minimal pulmonary vascular congestion without overt pulmonary edema .
    OUTPUT:
    
Slight blunting of the bilateral posterior costophrenic angles may be due to trace pleural effusions versus pleural thickening . Right base opacity with differential diagnosis including atelectasis , infection , or aspiration . Cardiomegaly .