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 ___ . Moderate cardiac enlargement , similar as on previous study . No typical configurational abnormality is seen ; however , a double contour on the frontal view within the cardiac shadow suggests some at least moderate dilatation of the left atrium . Dilated and elongated thoracic aorta with calcium deposit in the wall at the level of the arch as before . No local aortic contour abnormalities are identified . No evidence of acute discrete local pulmonary parenchymal infiltrates . Mildly increased interstitial pattern on the lung bases , similar as they existed before . In addition , there exists some mild thickening of the pleural spaces bilaterally , and very mild degree of blunting of the lateral and posterior pleural sinuses . Significant pleural effusions , however , are not identified and there is no pneumothorax in the apical area . Since the preceding examination , the patient has received a left - sided permanent pacer in anterior axillary position connected to one intracavitary electrode seen to terminate in the right ventricle touching the anterior right ventricular wall at the beginning of the outflow tract . The position is acceptable .
    OUTPUT:
    
New single electrode pacer in place , moderate cardiac enlargement as before . Slightly increased wetness of the pleural spaces , but no evidence of advanced interstitial or alveolar edema and no new discrete pulmonary parenchymal infiltrates .