Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single AP view of the chest demonstrates symmetrically well expanded and aerated lungs . No focal consolidation concerning for pneumonia or pneumothorax is detected . The pulmonary vasculature is not engorged . The cardiac silhouette is top normal in size . The mediastinal contours are within normal limits . The trachea is midline . There is no evidence of free air beneath the right hemidiaphragm .
    OUTPUT:
    
Overall unchanged appearance of the chest without evidence of acute cardiopulmonary process .