Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were obtained . A dual - lead pacer is unchanged with proximal and distal leads positioned in the expected location of the right atrium and right ventricle . There is stable elevation of the left hemidiaphragm with mild left basilar plate - like atelectasis . No definite sign of pneumonia , CHF , pleural effusion . Heart size appears stable with an unfolded thoracic aorta noted . Bony structures are intact .
    OUTPUT:
    
No acute findings in the chest .