Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable with moderate cardiomegaly , elongated tortuous aorta upper normal size and pulmonary arteries also upper normal size . Opacity in the right lower lobe in the periphery is more conspicuous than before likely a rounded atelectasis are seen in the prior CT . Opacity adjacent to the descending aorta could be atelectasis but attention in followup studies is recommended . There is no pneumothorax . There is probably small left effusion . The left hemidiaphragm is elevated . S - shaped scoliosis is again noted .
    OUTPUT:
    
Peripheral opacity in the right lower lobe is a rounded atelectasis Opacities adjacent to the descending thoracic aorta are more conspicuous than before , attention in followup studies is recommended differential diagnosis include worsening atelectasis or infection