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 chest examination ___ ___ . Heart size remains within normal limits . No typical configurational abnormality is identified . Thoracic aorta is unchanged and unremarkable . Pulmonary vasculature is not congested and there is no evidence of pneumothorax on the frontal view in the apical area . The patient is rather heavyset and able to elevate the arms on the lateral view ( allegedly related to shoulder discomfort ) . The pulmonary vasculature is not congested . The lateral and posterior pleural sinuses are free from any fluid accumulation . No acute pulmonary parenchymal infiltrates can be identified . Mild degree of degenerative changes are noted in the thoracic spine but appear unchanged in comparison with the previous study of ___ .
    OUTPUT:
    
No evidence of acute infiltrates or CHF . Stable chest findings since ___ .