Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . The heart size is within normal limits . No typical configurational abnormality is identified . The thoracic aorta is generally widened and elongated and this includes the ascending portion . There is however no evidence of local contour abnormalities . Relatively high positioned diaphragms are present and account for crowded appearance of the pulmonary vasculature on the bases . In addition , there are a few linear thin peripheral plate atelectasis but no evidence of acute pneumonic infiltrates is present . Lateral and posterior pleural sinuses are free . No acute infiltrates in the lung fields bilaterally and no pneumothorax in the apical area . Degenerative changes in the lower thoracic spine have advanced somewhat , but no local vertebral body compression fracture is noted .
    OUTPUT:
    
Stable chest findings with poor inspirational effort and low respiratory volumes with basal plate atelectasis but no evidence of acute pneumonic infiltrate .