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 AP and lateral chest examination ___ ___ . Previously identified mild cardiac enlargement has regressed and presently the cardiac contours are within normal limits . The thoracic aorta is mildly widened and elongated but there are no local suspicious contour abnormalities . The pulmonary vasculature is not congested . No evidence of acute or chronic parenchymal infiltrates are present and the lateral and posterior pleural sinuses are free . The patient 's inability to elevate arms somewhat detract from the image quality on the lateral view but again no acute abnormality is identified . In comparison with the next previous examination at that time existing mild congestive pulmonary pattern has normalized .
    OUTPUT:
    
No residuals of previously identified questionable CHF . Presently , the chest findings are within normal limits .