Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate low lung volumes , accentuating the cardiac contour and pulmonary vasculature . The heart size is enlarged and there is a tortuous descending aorta . Otherwise , the mediastinal and hilar contours are within normal limits . No focal opacity concerning for pneumonia is seen . No lung lesions are identified .
    OUTPUT:
    
Low lung volumes with no good evidence for pneumonia or malignancy .