Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . The mediastinal and cardiac contour are within normal limits . There is no pneumothorax and no pleural effusion . There is no visible rib fracture , however , this exam is not dedicated to the study of the ribs .
    OUTPUT:
    
There is no radiologic evidence of cardiopulmonary abnormalities . There is no visible rib fracture ; however , this exam is not dedicated to the evaluation of the ribs . Oblique views of the ribs can be obtained if clinically indicated .