Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is top normal size and mediastinal silhouette is stable . Dense calcifications are present along the aortic arch and throughout the descending thoracic aorta . Bilateral perihilar opacities with peribronchial cuffing and thickening of the minor fissure and areas of ground - glass opacification in the right upper and lower lung likely represent mild asymmetric pulmonary interstitial edema . Hazy opacification in the right upper lung infectious in etiology or represent edema related to mitral regurgitation . Small bilateral pleural effusions are present . No pneumothorax .
    OUTPUT:
    
Interval development of perihilar and asymmetric opacification of the right hemithorax may represent asymmetric pulmonary edema or atypical infection . In the setting of edema , involvement of the right upper lobe can represent mitral regurgitation .