Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Midline sternotomy wires , mediastinal clips and left chest wall pacer device are again noted with dual leads extending to the region of the right atrium and right ventricle . Top normal heart size again noted with interval improvement of mild pulmonary edema . Although there is mild bibasilar atelectasis , there is a persistent opacification of the left lower lobe . Small bilateral pleural effusions are evident on the lateral projection . There is no evidence of pneumothorax . Mediastinal contour is stable . Atherosclerotic calcifications along the thoracic aortic arch are noted . The visualized osseous structures are unremarkable . There is no evidence of pneumothorax .
    OUTPUT:
    
Interval improvement of mild pulmonary edema . Persistent opacity in the left lower lobe , for which a CT is recommended for further evaluation . Findings placed in critical results dashboard on the day of the exam .