Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The focal left upper lobe pneumonia has completely resolved . The lungs are clear . The hilar and cardiomediastinal contours are normal . There is no pneumothorax or pleural effusion . The pulmonary vascular markings are normal . Several probable breast biopsy clips can be seen overlying the left lower lung as well as the aortic arch .
    OUTPUT:
    
Resolution of left upper lobe pneumonia .