Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are normal . Lungs are clear with no focal areas of consolidation to suggest pneumonia . Heart appears mildly enlarged compared to the prior study . There are calcifications within the arch of the aorta . Cardiomediastinal contours are unremarkable . Small bilateral pleural effusions are noted . There is a 3 - mm nodule projecting over the second anterior rib on the right . No pneumothorax .
    OUTPUT:
    
1 . Cardiac silhouette appears to be enlarged compared to the prior study . 2 . Small bilateral pleural effusions . 3 . A 3 - mm pulmonary nodule noted projecting over the second anterior rib on the right .