Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate low lung volumes , which results in bronchovascular crowding . The cardiac silhouette appears enlarged , which may reflect cardiomegaly , although percardial effusion should also be considered . . The lungs appear clear . The hilar contours are within normal limits . A dual - lead pacemaker / ICD device is in position , with leads ending in the right atrium and ventricle , respectively . There is no pneumothorax .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Stable cardiac enlargement .