Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . The heart size remains normal . No typical configurational abnormalities identified . Moderate widening of thoracic aorta , but no evidence of local contour abnormalities . Similar to preceding examination , a left - sided permanent pacer is noted in anterior axillary position connected to two intracavitary electrodes terminating in unchanged positions . The pulmonary vasculature is not congested . No signs of acute or chronic pulmonary parenchymal abnormalities are present and the lateral and posterior pleural sinuses are free . No evidence of pneumothorax in the apical area .
    OUTPUT:
    
Stable chest findings , no interval change since ___ . Thus , no evidence of pulmonary vascular congestion or acute infiltrates on PA and lateral chest examination .