Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study ___ ___ . The heart size is unchanged and within normal limits . No configurational abnormality is identified . Unremarkable appearance of thoracic aorta . No mediastinal abnormalities are seen . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are seen and the lateral and posterior pleural sinuses are free . No pneumothorax in apical area . Unchanged appearance of previously described multiple surgical clips in dorsal chest wall and in left - sided para-spinal position .
    OUTPUT:
    
Unchanged normal chest findings . Thus , no evidence of any residual pulmonary infiltrate of described pneumonia appearing at other institution .