Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited by patient positioning and rotation . Left - sided pacemaker device is noted with leads terminating in similar positions . Moderate cardiomegaly and tortuosity of the thoracic aorta are re - demonstrated with diffuse atherosclerotic calcifications noted within the aorta . Hilar contours are difficult to assess given the degree of patient rotation . Patchy opacity in the left lung base could reflect an area of atelectasis . Additional focal opacity is seen within the right mid lung field . No overt pulmonary edema is demonstrated . No large pleural effusion or pneumothorax is clearly visualized on this supine exam . Osseous structures are diffusely demineralized with loss of height of several mid thoracic vertebral bodies .
    OUTPUT:
    
Limited exam . Patchy opacities within the left lung base and right mid lung field are nonspecific , and may reflect areas of atelectasis though infection is not excluded . No overt pulmonary edema .