Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . The cardiomediastinal silhouette is unchanged , with stable mild cardiomegaly . A dual - lead pacemaker device with pulse generator over the left chest wall and leads terminating in the right atrium and right ventricle is stable in position . There is no pneumothorax , pleural effusion , pulmonary edema , or focal airspace opacity .
    OUTPUT:
    
No acute pulmonary pathology .