Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate clear lungs with normal cardiac and mediastinal contours . There is no mediastinal widening . Mild bi-apical thickening is noted .
    OUTPUT:
    
No acute cardiopulmonary process . No mediastinal widening . These findings were relayed to ___ , at 4 :26 p .m . , as requested .