Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Dual - lead left - sided pacemaker is seen with leads extending to the expected positions of the right atrium and right ventricle . The cardiac silhouette is top normal to mildly enlarged . The aorta is calcified and tortuous . There is elevation of the anterior right hemidiaphragm . There are scattered linear areas of opacity in the mid - to - lower lungs bilaterally likely related to atelectasis / scarring . Mild prominence of the central pulmonary vasculature may be due to mild pulmonary edema . No definite focal consolidation or pleural effusion is seen . There are no findings to suggest pneumothorax .
    OUTPUT:
    
Top normal to mildly enlarged cardiac silhouette with possible mild vascular congestion . Scattered linear atelectasis / scarring .