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 ___ . As observed on preceding examination , patient 's accentuated kyphosis in the chest and anterior flexion of neck obscures markedly the apical areas of the lung on the frontal view . No significant interval change can be identified and pneumothorax in the area is unlikely . As before , there exists cardiac enlargement without typical configurational abnormality and the thoracic aorta is widened and elongated . No local contour abnormalities are identified . A permanent pacer in left anterior axillary position is again seen and demonstrates unchanged position of two intracavitary electrodes terminating in locations compatible with right atrial appendage and right ventricular apical portion correspondingly . The pulmonary vasculature is not congested . No new acute infiltrates are seen . Mild blunting of the right lateral pleural sinus is still present and unchanged and indicates scar formation rather than pleural effusion . The posterior pleural sinuses remain free . No new acute infiltrates can be seen . The , on previous examination , identified left - sided rib injuries are again seen and have not changed in appearance . No increase of the , at that time , suspected pleural density has occurred .
    OUTPUT:
    
Stable chest findings with a moderate cardiomegaly but absence of acute infiltrates or acute pulmonary congestion . No significant interval change can be identified between the next preceding examination of ___ and today 's examination .