Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding chest examination of ___ . There is evidence of moderate cardiac enlargement and the thoracic aorta is moderately elongated and shows calcium deposits in the wall . No local contour abnormalities are identified . The pulmonary vasculature demonstrates an upper zone re-distribution pattern and there are increased interstitial structures on both bases . The lateral and posterior pleural sinuses are free from any fluid accumulation . Acute discrete parenchymal infiltrates of pneumonia appearance are not seen . On the preceding chest examination of ___ , patient had similar findings . It was at that time interpreted as probably being in pulmonary vascular congestion whereas pneumonic infiltrates were not seen . Findings on the present chest examination are very similar to what existed before and suggest the presence of probably idiopathic pulmonary fibrosis in the lung bases . No new parenchymal infiltrates are seen . As on the previous examination , there is evidence of a left - sided shoulder arthrodesis , unchanged . Our records include a previous chest CT of ___ . The report at that time excluded pulmonary emboli , observed bilateral ground - glass opacities most severe on the lung bases , evidence of moderate collapse of the left mainstem bronchus compatible with bronchomalacia .
    OUTPUT:
    
No evidence of new parenchymal infiltrates indicative of pneumonia .