Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large aortic pseudoaneurysm arising from the arch is re- demonstrated , similar in configuration compared to the prior study . Moderate cardiomegaly is also unchanged and there is re- demonstration of a a moderate size hiatal hernia . Streaky opacity in the right lung base may reflect an area of atelectasis though infection is not excluded . There is no pulmonary edema or pneumothorax . Left lung is grossly clear . Marked atherosclerotic calcifications are seen involving the aorta . Several ring like densities within the left upper quadrant of the abdomen may reflect diverticula with residual contrast .
    OUTPUT:
    
Patchy right basilar opacity could reflect atelectasis though infection is not excluded . Large aortic pseudoaneurysm , unchanged . Moderate size hiatal hernia .