Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral low lung volumes with flattened contours of bilateral bases on the lateral view , possible small subpulmonic effusions . The lungs are clear without focal consolidation . No pneumothorax is seen . The cardiac and mediastinal silhouettes are unchanged . Extensive calcification of the descending aorta and the aortic knob . Gallstones are noted in the right upper quadrant .
    OUTPUT:
    
No acute cardiopulmonary process to explain patient 's cough . Possible small subpulmonic effusions