Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Overall , lung volumes are slightly increased compared to the prior study , with associated improved aeration at both lung bases . Residual patchy opacities are present in the left retrocardiac region . Focal linear scar versus atelectasis within the lingula appears unchanged . Heart is upper limits of normal in size , and ICD pacing leads are unchanged in position , a right - sided pacer as well as abandoned leads from previous left - sided device . There are no pleural effusions or acute skeletal findings . Curvilinear calcifications along the anterior cardiac border on lateral view correspond to a known calcified left ventricular aneurysm .
    OUTPUT:
    
1 . Improved aeration at lung bases with residual patchy left lower lobe opacity remaining . 2 . Calcified left ventricular aneurysm .