Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The newly placed left pectoral dual - lead pacemaker device appears intact and in appropriate position with 1 lead terminating in the right atrium and the other in the right ventricle . Streaky , linear opacities in the left lower lobe are more prominent , consistent with atelectasis . Associated elevation of the left hemidiaphragm is unchanged . Central pulmonary vascular congestion is moderate . The heart is moderately enlarged . The descending thoracic aorta is tortuous and / or ectatic . No pneumothorax , effusion , or focal consolidation to suggest focal pneumonia .
    OUTPUT:
    
1 . Satisfactory placement of dual lead left pacemaker device . 2 . Left lower lobe atelectasis .