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 ___ . The heart size remains normal . No configurational abnormality is seen . Thoracic aorta unchanged and without evidence of local contour abnormalities or advanced wall calcifications . The pulmonary vasculature is not congested . No evidence of acute discrete pulmonary infiltrates . No hazy local densities suggestive of PCP in this patient with history of HIV . No pneumothorax in the apical area on the frontal view . No pleural effusions in lateral or posterior sinus position . Moderate degree of degenerative changes in the thoracic spine as identified on lateral view , unchanged in degree .
    OUTPUT:
    
Stable chest findings , no evidence of acute infiltrates or pulmonary vascular congestion .