Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate to severe cardiomegaly is re- demonstrated . Atherosclerotic calcifications are noted at the aortic knob . Aneurysmal dilatation of the ascending thoracic aorta is again noted . Widening of the superior mediastinal contour is due to known thyroid goiter and appears unchanged . The pulmonary vasculature is not engorged . Patchy opacities in the lung bases may reflect areas of atelectasis . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities identified .
    OUTPUT:
    
Moderate to severe cardiomegaly . Patchy bibasilar opacities may reflect atelectasis . Similar appearance of widened superior mediastinal contour due to known thoracic aortic aneurysm and thyroid goiter .