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 ___ . Appearance of heart shadow and mediastinal structures is unchanged . Thus no marked cardiac enlargement is present . The thoracic aorta is moderately elongated and shows rather advanced calcium deposits in the wall at the level of the arch . Similar as on several preceding chest examinations , there is an irregular pulmonary vascular distribution coinciding with increased interstitial markings on the lung bases . One also observes extensive calcifications within the diaphragms as well as multiple partially calcified pleural plaques bilaterally . New acute pulmonary parenchymal infiltrates can not be identified and there is no pneumothorax in the apical area . Evidence of a moderately wedge - compressed vertebral body in the lower thoracic spine as seen before . Multiple surgical clips in right upper quadrant of abdomen unchanged .
    OUTPUT:
    
Stable cardiovascular findings , evidence of rather advanced interstitial fibrosis on the lung bases as well as evidence of pleural and diaphragmatic plaques consistent with previous asbestos exposure . No evidence of acute new pulmonary infiltrates or advanced CHF in comparison with preceding studies .