Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are fully expanded and clear . No pneumothorax or pulmonary edema is present . There is minimal blunting of the right costophrenic angle ; however , no significant pleural effusion is present . The heart and mediastinal contours are normal .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .