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 single view chest examination of ___ . Heart size remains normal . No configurational abnormality is seen . Ordinary ___ of thoracic aorta with a few calcium deposits in the wall at the level of the arch . No mediastinal abnormalities are seen . The pulmonary vasculature is characterized by absence of any congestion , but rather irregular vascular distribution with changing individual vessel diameters and areas of increased translucency . These happened to be most prominent in the lower lobe areas and coincide with rather low positioned diaphragms which appear flattened . There is no evidence of pleural effusion in either lateral or posterior pleural sinuses . Acute pulmonary parenchymal infiltrates can not be identified ; however , there exists a few scattered small diameter rounded densities , one of which is located in the right lower lobe in supradiaphragmatic position and appears unchanged . Skeletal structures of the thorax are characterized by a mild degree of S - shaped scoliosis in the thoracolumbar spine and moderately diffuse demineralization of the thoracic spine with moderately accentuated kyphotic curvature . There is no evidence of new rib abnormalities as can be identified on these standard PA and lateral chest views .
    OUTPUT:
    
No cardiac enlargement or pulmonary congestion , rather typical findings of chronic pulmonary obstructive airway disease with basal emphysema but no acute parenchymal infiltrates .