Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Previously noted left lower lobe pneumonia has essentially resolved . Remainder of the lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Resolution of previously noted left lower lobe pneumonia . No new acute cardiopulmonary abnormality otherwise demonstrated .