Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . The lungs are clear ; specifically , there has been resolution of the left lower lobe pneumonia ; additionally a more subtle bibasal opacity is also resolved . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Resolution of pneumonia ; no acute cardiopulmonary process .