Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear and the heart mediastinal contours are within normal limits in size and shape . No pneumothorax or pleural effusion is seen . No fracture is visible , however if there is concern for nondisplaced vertebral body or rib fracture , specific bone films should be obtained .
    OUTPUT:
    
No plain film findings of acute cardiopulmonary disease or visible fracture