Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , PA and lateral radiographs demonstrate unchanged moderate cardiomegaly . The mediastinal and hilar contours are unremarkable . The lungs are clear . No pleural effusion or pneumothorax evident . A vagal stimulator is identified . There is mild narrowing of the subglottic region at the level of the thoracic inlet unchanged compared to ___ . There is a stable S - shaped scoliosis of the thoracolumbar spine with associated degenerative change . No pneumothorax or pleural effusion evident .
    OUTPUT:
    
No acute cardiopulmonary process .